diff --git a/quantity/mass.odin b/quantity/mass.odin
new file mode 100644
index 0000000..c9fb8b7
--- /dev/null
+++ b/quantity/mass.odin
@@ -0,0 +1,774 @@
+package quantity
+
+import "base:intrinsics"
+
+GRAMS_PER_POUND :: 453.59237
+OUNCES_PER_POUND :: 16
+GRAMS_PER_OUNCE :: GRAMS_PER_POUND / OUNCES_PER_POUND
+
+KILO_GRAMS_PER_POUND :: GRAMS_PER_POUND / KILO
+MILLI_GRAMS_PER_POUND :: GRAMS_PER_POUND * MILLI
+MICRO_GRAMS_PER_POUND :: GRAMS_PER_POUND * MICRO
+NANO_GRAMS_PER_POUND :: GRAMS_PER_POUND * NANO
+
+KILO_GRAMS_PER_OUNCE :: GRAMS_PER_OUNCE / KILO
+MILLI_GRAMS_PER_OUNCE :: GRAMS_PER_OUNCE * MILLI
+MICRO_GRAMS_PER_OUNCE :: GRAMS_PER_OUNCE * MICRO
+NANO_GRAMS_PER_OUNCE :: GRAMS_PER_OUNCE * NANO
+
+//----- Grams ----------------------------------
+Grams :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
+	v: V,
+}
+
+// Prefer the to_kilo_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+grams_to_kilo_grams :: #force_inline proc "contextless" (
+	grams: Grams($V),
+) -> Kilo_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Kilo_Grams(V){grams.v / KILO}
+}
+
+// Prefer the to_milli_grams procedure group.
+grams_to_milli_grams :: #force_inline proc "contextless" (
+	grams: Grams($V),
+) -> Milli_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Milli_Grams(V){grams.v * MILLI}
+}
+
+// Prefer the to_micro_grams procedure group.
+grams_to_micro_grams :: #force_inline proc "contextless" (
+	grams: Grams($V),
+) -> Micro_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Micro_Grams(V){grams.v * MICRO}
+}
+
+// Prefer the to_nano_grams procedure group.
+grams_to_nano_grams :: #force_inline proc "contextless" (
+	grams: Grams($V),
+) -> Nano_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Nano_Grams(V){grams.v * NANO}
+}
+
+// Prefer the to_pounds procedure group.
+@(fast_math = {.Allow_Reciprocal})
+grams_to_pounds :: #force_inline proc "contextless" (
+	grams: Grams($V),
+) -> Pounds(V) where intrinsics.type_is_float(V) {
+	return Pounds(V){grams.v / GRAMS_PER_POUND}
+}
+
+// Prefer the to_ounces procedure group.
+@(fast_math = {.Allow_Reciprocal})
+grams_to_ounces :: #force_inline proc "contextless" (
+	grams: Grams($V),
+) -> Ounces(V) where intrinsics.type_is_float(V) {
+	return Ounces(V){grams.v / GRAMS_PER_OUNCE}
+}
+
+//----- Kilograms ----------------------------------
+Kilo_Grams :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
+	v: V,
+}
+
+// Prefer the to_grams procedure group.
+kilo_grams_to_grams :: #force_inline proc "contextless" (
+	kilo_grams: Kilo_Grams($V),
+) -> Grams(V) where intrinsics.type_is_numeric(V) {
+	return Grams(V){kilo_grams.v * KILO}
+}
+
+// Prefer the to_milli_grams procedure group.
+kilo_grams_to_milli_grams :: #force_inline proc "contextless" (
+	kilo_grams: Kilo_Grams($V),
+) -> Milli_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Milli_Grams(V){kilo_grams.v * (KILO * MILLI)}
+}
+
+// Prefer the to_micro_grams procedure group.
+kilo_grams_to_micro_grams :: #force_inline proc "contextless" (
+	kilo_grams: Kilo_Grams($V),
+) -> Micro_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Micro_Grams(V){kilo_grams.v * (KILO * MICRO)}
+}
+
+// Prefer the to_nano_grams procedure group.
+kilo_grams_to_nano_grams :: #force_inline proc "contextless" (
+	kilo_grams: Kilo_Grams($V),
+) -> Nano_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Nano_Grams(V){kilo_grams.v * (KILO * NANO)}
+}
+
+// Prefer the to_pounds procedure group.
+@(fast_math = {.Allow_Reciprocal})
+kilo_grams_to_pounds :: #force_inline proc "contextless" (
+	kilo_grams: Kilo_Grams($V),
+) -> Pounds(V) where intrinsics.type_is_float(V) {
+	return Pounds(V){kilo_grams.v / KILO_GRAMS_PER_POUND}
+}
+
+// Prefer the to_ounces procedure group.
+@(fast_math = {.Allow_Reciprocal})
+kilo_grams_to_ounces :: #force_inline proc "contextless" (
+	kilo_grams: Kilo_Grams($V),
+) -> Ounces(V) where intrinsics.type_is_float(V) {
+	return Ounces(V){kilo_grams.v / KILO_GRAMS_PER_OUNCE}
+}
+
+//----- Milligrams ----------------------------------
+Milli_Grams :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
+	v: V,
+}
+
+// Prefer the to_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+milli_grams_to_grams :: #force_inline proc "contextless" (
+	milli_grams: Milli_Grams($V),
+) -> Grams(V) where intrinsics.type_is_numeric(V) {
+	return Grams(V){milli_grams.v / MILLI}
+}
+
+// Prefer the to_kilo_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+milli_grams_to_kilo_grams :: #force_inline proc "contextless" (
+	milli_grams: Milli_Grams($V),
+) -> Kilo_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Kilo_Grams(V){milli_grams.v / (KILO * MILLI)}
+}
+
+// Prefer the to_micro_grams procedure group.
+milli_grams_to_micro_grams :: #force_inline proc "contextless" (
+	milli_grams: Milli_Grams($V),
+) -> Micro_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Micro_Grams(V){milli_grams.v * (MICRO / MILLI)}
+}
+
+// Prefer the to_nano_grams procedure group.
+milli_grams_to_nano_grams :: #force_inline proc "contextless" (
+	milli_grams: Milli_Grams($V),
+) -> Nano_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Nano_Grams(V){milli_grams.v * (NANO / MILLI)}
+}
+
+// Prefer the to_pounds procedure group.
+@(fast_math = {.Allow_Reciprocal})
+milli_grams_to_pounds :: #force_inline proc "contextless" (
+	milli_grams: Milli_Grams($V),
+) -> Pounds(V) where intrinsics.type_is_float(V) {
+	return Pounds(V){milli_grams.v / MILLI_GRAMS_PER_POUND}
+}
+
+// Prefer the to_ounces procedure group.
+@(fast_math = {.Allow_Reciprocal})
+milli_grams_to_ounces :: #force_inline proc "contextless" (
+	milli_grams: Milli_Grams($V),
+) -> Ounces(V) where intrinsics.type_is_float(V) {
+	return Ounces(V){milli_grams.v / MILLI_GRAMS_PER_OUNCE}
+}
+
+//----- Micrograms ----------------------------------
+Micro_Grams :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
+	v: V,
+}
+
+// Prefer the to_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+micro_grams_to_grams :: #force_inline proc "contextless" (
+	micro_grams: Micro_Grams($V),
+) -> Grams(V) where intrinsics.type_is_numeric(V) {
+	return Grams(V){micro_grams.v / MICRO}
+}
+
+// Prefer the to_kilo_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+micro_grams_to_kilo_grams :: #force_inline proc "contextless" (
+	micro_grams: Micro_Grams($V),
+) -> Kilo_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Kilo_Grams(V){micro_grams.v / (KILO * MICRO)}
+}
+
+// Prefer the to_milli_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+micro_grams_to_milli_grams :: #force_inline proc "contextless" (
+	micro_grams: Micro_Grams($V),
+) -> Milli_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Milli_Grams(V){micro_grams.v / (MICRO / MILLI)}
+}
+
+// Prefer the to_nano_grams procedure group.
+micro_grams_to_nano_grams :: #force_inline proc "contextless" (
+	micro_grams: Micro_Grams($V),
+) -> Nano_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Nano_Grams(V){micro_grams.v * (NANO / MICRO)}
+}
+
+// Prefer the to_pounds procedure group.
+@(fast_math = {.Allow_Reciprocal})
+micro_grams_to_pounds :: #force_inline proc "contextless" (
+	micro_grams: Micro_Grams($V),
+) -> Pounds(V) where intrinsics.type_is_float(V) {
+	return Pounds(V){micro_grams.v / MICRO_GRAMS_PER_POUND}
+}
+
+// Prefer the to_ounces procedure group.
+@(fast_math = {.Allow_Reciprocal})
+micro_grams_to_ounces :: #force_inline proc "contextless" (
+	micro_grams: Micro_Grams($V),
+) -> Ounces(V) where intrinsics.type_is_float(V) {
+	return Ounces(V){micro_grams.v / MICRO_GRAMS_PER_OUNCE}
+}
+
+//----- Nanograms ----------------------------------
+Nano_Grams :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
+	v: V,
+}
+
+// Prefer the to_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+nano_grams_to_grams :: #force_inline proc "contextless" (
+	nano_grams: Nano_Grams($V),
+) -> Grams(V) where intrinsics.type_is_numeric(V) {
+	return Grams(V){nano_grams.v / NANO}
+}
+
+// Prefer the to_kilo_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+nano_grams_to_kilo_grams :: #force_inline proc "contextless" (
+	nano_grams: Nano_Grams($V),
+) -> Kilo_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Kilo_Grams(V){nano_grams.v / (KILO * NANO)}
+}
+
+// Prefer the to_milli_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+nano_grams_to_milli_grams :: #force_inline proc "contextless" (
+	nano_grams: Nano_Grams($V),
+) -> Milli_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Milli_Grams(V){nano_grams.v / (NANO / MILLI)}
+}
+
+// Prefer the to_micro_grams procedure group.
+@(fast_math = {.Allow_Reciprocal})
+nano_grams_to_micro_grams :: #force_inline proc "contextless" (
+	nano_grams: Nano_Grams($V),
+) -> Micro_Grams(V) where intrinsics.type_is_numeric(V) {
+	return Micro_Grams(V){nano_grams.v / (NANO / MICRO)}
+}
+
+// Prefer the to_pounds procedure group.
+@(fast_math = {.Allow_Reciprocal})
+nano_grams_to_pounds :: #force_inline proc "contextless" (
+	nano_grams: Nano_Grams($V),
+) -> Pounds(V) where intrinsics.type_is_float(V) {
+	return Pounds(V){nano_grams.v / NANO_GRAMS_PER_POUND}
+}
+
+// Prefer the to_ounces procedure group.
+@(fast_math = {.Allow_Reciprocal})
+nano_grams_to_ounces :: #force_inline proc "contextless" (
+	nano_grams: Nano_Grams($V),
+) -> Ounces(V) where intrinsics.type_is_float(V) {
+	return Ounces(V){nano_grams.v / NANO_GRAMS_PER_OUNCE}
+}
+
+//----- Pounds ----------------------------------
+Pounds :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
+	v: V,
+}
+
+// Prefer the to_grams procedure group.
+pounds_to_grams :: #force_inline proc "contextless" (
+	pounds: Pounds($V),
+) -> Grams(V) where intrinsics.type_is_float(V) {
+	return Grams(V){pounds.v * GRAMS_PER_POUND}
+}
+
+// Prefer the to_kilo_grams procedure group.
+pounds_to_kilo_grams :: #force_inline proc "contextless" (
+	pounds: Pounds($V),
+) -> Kilo_Grams(V) where intrinsics.type_is_float(V) {
+	return Kilo_Grams(V){pounds.v * KILO_GRAMS_PER_POUND}
+}
+
+// Prefer the to_milli_grams procedure group.
+pounds_to_milli_grams :: #force_inline proc "contextless" (
+	pounds: Pounds($V),
+) -> Milli_Grams(V) where intrinsics.type_is_float(V) {
+	return Milli_Grams(V){pounds.v * MILLI_GRAMS_PER_POUND}
+}
+
+// Prefer the to_micro_grams procedure group.
+pounds_to_micro_grams :: #force_inline proc "contextless" (
+	pounds: Pounds($V),
+) -> Micro_Grams(V) where intrinsics.type_is_float(V) {
+	return Micro_Grams(V){pounds.v * MICRO_GRAMS_PER_POUND}
+}
+
+// Prefer the to_nano_grams procedure group.
+pounds_to_nano_grams :: #force_inline proc "contextless" (
+	pounds: Pounds($V),
+) -> Nano_Grams(V) where intrinsics.type_is_float(V) {
+	return Nano_Grams(V){pounds.v * NANO_GRAMS_PER_POUND}
+}
+
+// Prefer the to_ounces procedure group.
+pounds_to_ounces :: #force_inline proc "contextless" (
+	pounds: Pounds($V),
+) -> Ounces(V) where intrinsics.type_is_numeric(V) {
+	return Ounces(V){pounds.v * OUNCES_PER_POUND}
+}
+
+//----- Ounces ----------------------------------
+Ounces :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
+	v: V,
+}
+
+// Prefer the to_grams procedure group.
+ounces_to_grams :: #force_inline proc "contextless" (
+	ounces: Ounces($V),
+) -> Grams(V) where intrinsics.type_is_float(V) {
+	return Grams(V){ounces.v * GRAMS_PER_OUNCE}
+}
+
+// Prefer the to_kilo_grams procedure group.
+ounces_to_kilo_grams :: #force_inline proc "contextless" (
+	ounces: Ounces($V),
+) -> Kilo_Grams(V) where intrinsics.type_is_float(V) {
+	return Kilo_Grams(V){ounces.v * KILO_GRAMS_PER_OUNCE}
+}
+
+// Prefer the to_milli_grams procedure group.
+ounces_to_milli_grams :: #force_inline proc "contextless" (
+	ounces: Ounces($V),
+) -> Milli_Grams(V) where intrinsics.type_is_float(V) {
+	return Milli_Grams(V){ounces.v * MILLI_GRAMS_PER_OUNCE}
+}
+
+// Prefer the to_micro_grams procedure group.
+ounces_to_micro_grams :: #force_inline proc "contextless" (
+	ounces: Ounces($V),
+) -> Micro_Grams(V) where intrinsics.type_is_float(V) {
+	return Micro_Grams(V){ounces.v * MICRO_GRAMS_PER_OUNCE}
+}
+
+// Prefer the to_nano_grams procedure group.
+ounces_to_nano_grams :: #force_inline proc "contextless" (
+	ounces: Ounces($V),
+) -> Nano_Grams(V) where intrinsics.type_is_float(V) {
+	return Nano_Grams(V){ounces.v * NANO_GRAMS_PER_OUNCE}
+}
+
+// Prefer the to_pounds procedure group.
+@(fast_math = {.Allow_Reciprocal})
+ounces_to_pounds :: #force_inline proc "contextless" (
+	ounces: Ounces($V),
+) -> Pounds(V) where intrinsics.type_is_numeric(V) {
+	return Pounds(V){ounces.v / OUNCES_PER_POUND}
+}
+
+// ---------------------------------------------------------------------------------------------------------------------
+// ----- Conversion Overloads ------------------------
+// ---------------------------------------------------------------------------------------------------------------------
+to_grams :: proc {
+	kilo_grams_to_grams,
+	milli_grams_to_grams,
+	micro_grams_to_grams,
+	nano_grams_to_grams,
+	pounds_to_grams,
+	ounces_to_grams,
+}
+
+to_kilo_grams :: proc {
+	grams_to_kilo_grams,
+	milli_grams_to_kilo_grams,
+	micro_grams_to_kilo_grams,
+	nano_grams_to_kilo_grams,
+	pounds_to_kilo_grams,
+	ounces_to_kilo_grams,
+}
+
+to_milli_grams :: proc {
+	grams_to_milli_grams,
+	kilo_grams_to_milli_grams,
+	micro_grams_to_milli_grams,
+	nano_grams_to_milli_grams,
+	pounds_to_milli_grams,
+	ounces_to_milli_grams,
+}
+
+to_micro_grams :: proc {
+	grams_to_micro_grams,
+	kilo_grams_to_micro_grams,
+	milli_grams_to_micro_grams,
+	nano_grams_to_micro_grams,
+	pounds_to_micro_grams,
+	ounces_to_micro_grams,
+}
+
+to_nano_grams :: proc {
+	grams_to_nano_grams,
+	kilo_grams_to_nano_grams,
+	milli_grams_to_nano_grams,
+	micro_grams_to_nano_grams,
+	pounds_to_nano_grams,
+	ounces_to_nano_grams,
+}
+
+to_pounds :: proc {
+	grams_to_pounds,
+	kilo_grams_to_pounds,
+	milli_grams_to_pounds,
+	micro_grams_to_pounds,
+	nano_grams_to_pounds,
+	ounces_to_pounds,
+}
+
+to_ounces :: proc {
+	grams_to_ounces,
+	kilo_grams_to_ounces,
+	milli_grams_to_ounces,
+	micro_grams_to_ounces,
+	nano_grams_to_ounces,
+	pounds_to_ounces,
+}
+
+// ---------------------------------------------------------------------------------------------------------------------
+// ----- Tests ------------------------
+// ---------------------------------------------------------------------------------------------------------------------
+import "core:testing"
+
+@(test)
+test_grams_to_kilo_grams :: proc(t: ^testing.T) {
+	grams := Grams(int){12_000}
+	kilo_grams := to_kilo_grams(grams)
+
+	testing.expect_value(t, kilo_grams, Kilo_Grams(int){12})
+}
+
+@(test)
+test_grams_to_milli_grams :: proc(t: ^testing.T) {
+	grams := Grams(int){12}
+	milli_grams := to_milli_grams(grams)
+
+	testing.expect_value(t, milli_grams, Milli_Grams(int){12_000})
+}
+
+@(test)
+test_grams_to_micro_grams :: proc(t: ^testing.T) {
+	grams := Grams(int){12}
+	micro_grams := to_micro_grams(grams)
+
+	testing.expect_value(t, micro_grams, Micro_Grams(int){12_000_000})
+}
+
+@(test)
+test_grams_to_nano_grams :: proc(t: ^testing.T) {
+	grams := Grams(int){12}
+	nano_grams := to_nano_grams(grams)
+
+	testing.expect_value(t, nano_grams, Nano_Grams(int){12_000_000_000})
+}
+
+@(test)
+test_grams_to_pounds :: proc(t: ^testing.T) {
+	grams := Grams(f32){453.59237}
+	pounds := to_pounds(grams)
+
+	testing.expect(t, pounds.v > 0.99 && pounds.v < 1.01)
+}
+
+@(test)
+test_grams_to_ounces :: proc(t: ^testing.T) {
+	grams := Grams(f32){28.349523125}
+	ounces := to_ounces(grams)
+
+	testing.expect(t, ounces.v > 0.99 && ounces.v < 1.01)
+}
+
+@(test)
+test_kilo_grams_to_grams :: proc(t: ^testing.T) {
+	kilo_grams := Kilo_Grams(int){12}
+	grams := to_grams(kilo_grams)
+
+	testing.expect_value(t, grams, Grams(int){12_000})
+}
+
+@(test)
+test_kilo_grams_to_milli_grams :: proc(t: ^testing.T) {
+	kilo_grams := Kilo_Grams(int){5}
+	milli_grams := to_milli_grams(kilo_grams)
+
+	testing.expect_value(t, milli_grams, Milli_Grams(int){5_000_000})
+}
+
+@(test)
+test_kilo_grams_to_micro_grams :: proc(t: ^testing.T) {
+	kilo_grams := Kilo_Grams(int){5}
+	micro_grams := to_micro_grams(kilo_grams)
+
+	testing.expect_value(t, micro_grams, Micro_Grams(int){5_000_000_000})
+}
+
+@(test)
+test_kilo_grams_to_nano_grams :: proc(t: ^testing.T) {
+	kilo_grams := Kilo_Grams(int){5}
+	nano_grams := to_nano_grams(kilo_grams)
+
+	testing.expect_value(t, nano_grams, Nano_Grams(int){5_000_000_000_000})
+}
+
+@(test)
+test_kilo_grams_to_pounds :: proc(t: ^testing.T) {
+	kilo_grams := Kilo_Grams(f32){0.45359237}
+	pounds := to_pounds(kilo_grams)
+
+	testing.expect(t, pounds.v > 0.99 && pounds.v < 1.01)
+}
+
+@(test)
+test_kilo_grams_to_ounces :: proc(t: ^testing.T) {
+	kilo_grams := Kilo_Grams(f32){0.028349523125}
+	ounces := to_ounces(kilo_grams)
+
+	testing.expect(t, ounces.v > 0.99 && ounces.v < 1.01)
+}
+
+@(test)
+test_milli_grams_to_grams :: proc(t: ^testing.T) {
+	milli_grams := Milli_Grams(int){12_000}
+	grams := to_grams(milli_grams)
+
+	testing.expect_value(t, grams, Grams(int){12})
+}
+
+@(test)
+test_milli_grams_to_kilo_grams :: proc(t: ^testing.T) {
+	milli_grams := Milli_Grams(int){5_000_000}
+	kilo_grams := to_kilo_grams(milli_grams)
+
+	testing.expect_value(t, kilo_grams, Kilo_Grams(int){5})
+}
+
+@(test)
+test_milli_grams_to_micro_grams :: proc(t: ^testing.T) {
+	milli_grams := Milli_Grams(int){5}
+	micro_grams := to_micro_grams(milli_grams)
+
+	testing.expect_value(t, micro_grams, Micro_Grams(int){5_000})
+}
+
+@(test)
+test_milli_grams_to_nano_grams :: proc(t: ^testing.T) {
+	milli_grams := Milli_Grams(int){5}
+	nano_grams := to_nano_grams(milli_grams)
+
+	testing.expect_value(t, nano_grams, Nano_Grams(int){5_000_000})
+}
+
+@(test)
+test_milli_grams_to_pounds :: proc(t: ^testing.T) {
+	milli_grams := Milli_Grams(f64){453_592.37}
+	pounds := to_pounds(milli_grams)
+
+	testing.expect(t, pounds.v > 0.9999999 && pounds.v < 1.0000001)
+}
+
+@(test)
+test_milli_grams_to_ounces :: proc(t: ^testing.T) {
+	milli_grams := Milli_Grams(f64){28_349.523125}
+	ounces := to_ounces(milli_grams)
+
+	testing.expect(t, ounces.v > 0.9999999 && ounces.v < 1.0000001)
+}
+
+@(test)
+test_micro_grams_to_grams :: proc(t: ^testing.T) {
+	micro_grams := Micro_Grams(int){12_000_000}
+	grams := to_grams(micro_grams)
+
+	testing.expect_value(t, grams, Grams(int){12})
+}
+
+@(test)
+test_micro_grams_to_kilo_grams :: proc(t: ^testing.T) {
+	micro_grams := Micro_Grams(int){5_000_000_000}
+	kilo_grams := to_kilo_grams(micro_grams)
+
+	testing.expect_value(t, kilo_grams, Kilo_Grams(int){5})
+}
+
+@(test)
+test_micro_grams_to_milli_grams :: proc(t: ^testing.T) {
+	micro_grams := Micro_Grams(int){5_000}
+	milli_grams := to_milli_grams(micro_grams)
+
+	testing.expect_value(t, milli_grams, Milli_Grams(int){5})
+}
+
+@(test)
+test_micro_grams_to_nano_grams :: proc(t: ^testing.T) {
+	micro_grams := Micro_Grams(int){5}
+	nano_grams := to_nano_grams(micro_grams)
+
+	testing.expect_value(t, nano_grams, Nano_Grams(int){5_000})
+}
+
+@(test)
+test_micro_grams_to_pounds :: proc(t: ^testing.T) {
+	micro_grams := Micro_Grams(f64){453_592_370}
+	pounds := to_pounds(micro_grams)
+
+	testing.expect(t, pounds.v > 0.9999999 && pounds.v < 1.0000001)
+}
+
+@(test)
+test_micro_grams_to_ounces :: proc(t: ^testing.T) {
+	micro_grams := Micro_Grams(f64){28_349_523.125}
+	ounces := to_ounces(micro_grams)
+
+	testing.expect(t, ounces.v > 0.9999999 && ounces.v < 1.0000001)
+}
+
+@(test)
+test_nano_grams_to_grams :: proc(t: ^testing.T) {
+	nano_grams := Nano_Grams(int){12_000_000_000}
+	grams := to_grams(nano_grams)
+
+	testing.expect_value(t, grams, Grams(int){12})
+}
+
+@(test)
+test_nano_grams_to_kilo_grams :: proc(t: ^testing.T) {
+	nano_grams := Nano_Grams(int){5_000_000_000_000}
+	kilo_grams := to_kilo_grams(nano_grams)
+
+	testing.expect_value(t, kilo_grams, Kilo_Grams(int){5})
+}
+
+@(test)
+test_nano_grams_to_milli_grams :: proc(t: ^testing.T) {
+	nano_grams := Nano_Grams(int){5_000_000}
+	milli_grams := to_milli_grams(nano_grams)
+
+	testing.expect_value(t, milli_grams, Milli_Grams(int){5})
+}
+
+@(test)
+test_nano_grams_to_micro_grams :: proc(t: ^testing.T) {
+	nano_grams := Nano_Grams(int){5_000}
+	micro_grams := to_micro_grams(nano_grams)
+
+	testing.expect_value(t, micro_grams, Micro_Grams(int){5})
+}
+
+@(test)
+test_nano_grams_to_pounds :: proc(t: ^testing.T) {
+	nano_grams := Nano_Grams(f64){453_592_370_000}
+	pounds := to_pounds(nano_grams)
+
+	testing.expect(t, pounds.v > 0.9999999 && pounds.v < 1.0000001)
+}
+
+@(test)
+test_nano_grams_to_ounces :: proc(t: ^testing.T) {
+	nano_grams := Nano_Grams(f64){28_349_523_125}
+	ounces := to_ounces(nano_grams)
+
+	testing.expect(t, ounces.v > 0.9999999 && ounces.v < 1.0000001)
+}
+
+@(test)
+test_pounds_to_grams :: proc(t: ^testing.T) {
+	pounds := Pounds(f32){1}
+	grams := to_grams(pounds)
+
+	testing.expect(t, grams.v > 453.59 && grams.v < 453.6)
+}
+
+@(test)
+test_pounds_to_kilo_grams :: proc(t: ^testing.T) {
+	pounds := Pounds(f32){1}
+	kilo_grams := to_kilo_grams(pounds)
+
+	testing.expect(t, kilo_grams.v > 0.4535 && kilo_grams.v < 0.4536)
+}
+
+@(test)
+test_pounds_to_milli_grams :: proc(t: ^testing.T) {
+	pounds := Pounds(f64){1}
+	milli_grams := to_milli_grams(pounds)
+
+	testing.expect(t, milli_grams.v > 453_592.369 && milli_grams.v < 453_592.371)
+}
+
+@(test)
+test_pounds_to_micro_grams :: proc(t: ^testing.T) {
+	pounds := Pounds(f64){1}
+	micro_grams := to_micro_grams(pounds)
+
+	testing.expect(t, micro_grams.v > 453_592_369.9 && micro_grams.v < 453_592_370.1)
+}
+
+@(test)
+test_pounds_to_nano_grams :: proc(t: ^testing.T) {
+	pounds := Pounds(f64){1}
+	nano_grams := to_nano_grams(pounds)
+
+	testing.expect(t, nano_grams.v > 453_592_369_999.0 && nano_grams.v < 453_592_370_001.0)
+}
+
+@(test)
+test_pounds_to_ounces :: proc(t: ^testing.T) {
+	pounds := Pounds(int){2}
+	ounces := to_ounces(pounds)
+
+	testing.expect_value(t, ounces, Ounces(int){32})
+}
+
+@(test)
+test_ounces_to_grams :: proc(t: ^testing.T) {
+	ounces := Ounces(f32){1}
+	grams := to_grams(ounces)
+
+	testing.expect(t, grams.v > 28.34 && grams.v < 28.35)
+}
+
+@(test)
+test_ounces_to_kilo_grams :: proc(t: ^testing.T) {
+	ounces := Ounces(f32){1}
+	kilo_grams := to_kilo_grams(ounces)
+
+	testing.expect(t, kilo_grams.v > 0.0283 && kilo_grams.v < 0.0284)
+}
+
+@(test)
+test_ounces_to_milli_grams :: proc(t: ^testing.T) {
+	ounces := Ounces(f64){1}
+	milli_grams := to_milli_grams(ounces)
+
+	testing.expect(t, milli_grams.v > 28_349.523 && milli_grams.v < 28_349.524)
+}
+
+@(test)
+test_ounces_to_micro_grams :: proc(t: ^testing.T) {
+	ounces := Ounces(f64){1}
+	micro_grams := to_micro_grams(ounces)
+
+	testing.expect(t, micro_grams.v > 28_349_523.124 && micro_grams.v < 28_349_523.126)
+}
+
+@(test)
+test_ounces_to_nano_grams :: proc(t: ^testing.T) {
+	ounces := Ounces(f64){1}
+	nano_grams := to_nano_grams(ounces)
+
+	testing.expect(t, nano_grams.v > 28_349_523_124.0 && nano_grams.v < 28_349_523_126.0)
+}
+
+@(test)
+test_ounces_to_pounds :: proc(t: ^testing.T) {
+	ounces := Ounces(int){32}
+	pounds := to_pounds(ounces)
+
+	testing.expect_value(t, pounds, Pounds(int){2})
+}
diff --git a/quantity/pressure.odin b/quantity/pressure.odin
index 41bc9a8..d3d2839 100644
--- a/quantity/pressure.odin
+++ b/quantity/pressure.odin
@@ -10,14 +10,14 @@ Pascals :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_kilo_pascals procedure group.
 pascals_to_kilo_pascals :: #force_inline proc "contextless" (
 	pascals: Pascals($V),
 ) -> Kilo_Pascals(V) where intrinsics.type_is_numeric(V) {
 	return Kilo_Pascals(V){pascals.v / KILO}
 }
 
-@(private = "file")
+// Prefer the to_torr procedure group.
 pascals_to_torr :: #force_inline proc "contextless" (
 	pascals: Pascals($V),
 ) -> Torr(V) where intrinsics.type_is_float(V) {
@@ -29,15 +29,16 @@ Kilo_Pascals :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_pascals procedure group.
 kilo_pascals_to_pascals :: #force_inline proc "contextless" (
 	kilo_pascals: Kilo_Pascals($V),
 ) -> Pascals(V) where intrinsics.type_is_numeric(V) {
 	return Pascals(V){kilo_pascals.v * KILO}
 }
 
+// Prefer the to_psi procedure group.
 kilo_pascals_to_psi :: #force_inline proc "contextless" (
-    kilo_pascals: Kilo_Pascals($V),
+	kilo_pascals: Kilo_Pascals($V),
 ) -> Psi(V) where intrinsics.type_is_float(V) {
 	return Psi(V){kilo_pascals.v / KILO_PASCALS_PER_PSI}
 }
@@ -47,7 +48,7 @@ Torr :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_pascals procedure group.
 torr_to_pascals :: #force_inline proc "contextless" (
 	torr: Torr($V),
 ) -> Pascals(V) where intrinsics.type_is_float(V) {
@@ -59,6 +60,7 @@ Psi :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
+// Prefer the to_kilo_pascals procedure group.
 psi_to_kilo_pascals :: #force_inline proc "contextless" (
 	psi: Psi($V),
 ) -> Kilo_Pascals(V) where intrinsics.type_is_float(V) {
@@ -79,11 +81,11 @@ to_kilo_pascals :: proc {
 }
 
 to_torr :: proc {
-    pascals_to_torr,
+	pascals_to_torr,
 }
 
 to_psi :: proc {
-    kilo_pascals_to_psi,
+	kilo_pascals_to_psi,
 }
 
 
@@ -110,25 +112,25 @@ test_kilo_pascals_to_pascals :: proc(t: ^testing.T) {
 
 @(test)
 test_pascals_to_torr :: proc(t: ^testing.T) {
-    pascals := Pascals(f32){1000}
-    torr := to_torr(pascals)
+	pascals := Pascals(f32){1000}
+	torr := to_torr(pascals)
 
-    testing.expect(t, torr.v > 7.49 && torr.v < 7.51)
+	testing.expect(t, torr.v > 7.49 && torr.v < 7.51)
 }
 
 @(test)
 test_torr_to_pascals :: proc(t: ^testing.T) {
-    torr := Torr(f32){7.5}
-    pascals := to_pascals(torr)
+	torr := Torr(f32){7.5}
+	pascals := to_pascals(torr)
 
-    testing.expect(t, pascals.v > 999.91 && pascals.v < 999.92)
+	testing.expect(t, pascals.v > 999.91 && pascals.v < 999.92)
 }
 
 @(test)
 test_psi_kilo_pascals :: proc(t: ^testing.T) {
-    psi := Psi(f32){2.5}
-    kilo_pascals := Kilo_Pascals(f32){17.23689323292091}
+	psi := Psi(f32){2.5}
+	kilo_pascals := Kilo_Pascals(f32){17.23689323292091}
 
-    testing.expect(t, to_kilo_pascals(psi).v > 17.22 && to_kilo_pascals(psi).v < 17.24)
-    testing.expect(t, to_psi(kilo_pascals).v > 2.49 && to_psi(kilo_pascals).v < 2.51)
+	testing.expect(t, to_kilo_pascals(psi).v > 17.22 && to_kilo_pascals(psi).v < 17.24)
+	testing.expect(t, to_psi(kilo_pascals).v > 2.49 && to_psi(kilo_pascals).v < 2.51)
 }
diff --git a/quantity/temperature.odin b/quantity/temperature.odin
index 68564b1..8b0be84 100644
--- a/quantity/temperature.odin
+++ b/quantity/temperature.odin
@@ -30,21 +30,21 @@ Kelvins :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_celsius procedure group.
 kelvins_to_celsius :: #force_inline proc "contextless" (
 	kelvins: Kelvins($V),
 ) -> Celsius(V) where intrinsics.type_is_numeric(V) {
 	return Celsius(V){kelvins.v - kelvins_celsius_offset(V)}
 }
 
-@(private = "file")
+// Prefer the to_deci_kelvins procedure group.
 kelvins_to_deci_kelvins :: #force_inline proc "contextless" (
 	kelvins: Kelvins($V),
 ) -> Deci_Kelvins(V) where intrinsics.type_is_numeric(V) {
 	return Deci_Kelvins(V){kelvins.v * DECI}
 }
 
-@(private = "file")
+// Prefer the to_fahrenheit procedure group.
 kelvins_to_fahrenheit :: #force_inline proc "contextless" (
 	kelvins: Kelvins($V),
 ) -> Fahrenheit(V) where intrinsics.type_is_numeric(V) {
@@ -56,7 +56,7 @@ Deci_Kelvins :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_kelvins procedure group.
 deci_kelvins_to_kelvins :: #force_inline proc "contextless" (
 	deci_kelvins: Deci_Kelvins($V),
 ) -> Kelvins(V) where intrinsics.type_is_numeric(V) {
@@ -68,21 +68,22 @@ Celsius :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_kelvins procedure group.
 celsius_to_kelvins :: #force_inline proc "contextless" (
 	degrees_celsius: Celsius($V),
 ) -> Kelvins(V) where intrinsics.type_is_numeric(V) {
 	return Kelvins(V){degrees_celsius.v + kelvins_celsius_offset(V)}
 }
 
-@(private = "file")
+// Prefer the to_deci_celsius procedure group.
 celsius_to_deci_celsius :: #force_inline proc "contextless" (
 	degrees_celsius: Celsius($V),
 ) -> Deci_Celsius(V) where intrinsics.type_is_numeric(V) {
 	return Deci_Celsius(V){degrees_celsius.v * DECI}
 }
 
-@(private = "file", fast_math = {.Allow_Contract})
+// Prefer the to_fahrenheit procedure group.
+@(fast_math = {.Allow_Contract})
 celsius_to_fahrenheit :: #force_inline proc "contextless" (
 	degrees_celsius: Celsius($V),
 ) -> Fahrenheit(V) where intrinsics.type_is_numeric(V) {
@@ -98,7 +99,7 @@ Deci_Celsius :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_celsius procedure group.
 deci_celsius_to_celsius :: #force_inline proc "contextless" (
 	deci_degrees_celsius: Deci_Celsius($V),
 ) -> Celsius(V) where intrinsics.type_is_numeric(V) {
@@ -110,7 +111,7 @@ Fahrenheit :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_celsius procedure group.
 fahrenheit_to_celsius :: #force_inline proc "contextless" (
 	degrees_fahrenheit: Fahrenheit($V),
 ) -> Celsius(V) where intrinsics.type_is_numeric(V) {
@@ -121,7 +122,7 @@ fahrenheit_to_celsius :: #force_inline proc "contextless" (
 	}
 }
 
-@(private = "file")
+// Prefer the to_kelvins procedure group.
 fahrenheit_to_kelvins :: #force_inline proc "contextless" (
 	degrees_fahrenheit: Fahrenheit($V),
 ) -> Kelvins(V) where intrinsics.type_is_numeric(V) {
diff --git a/quantity/voltage.odin b/quantity/voltage.odin
index 3421914..cb21605 100644
--- a/quantity/voltage.odin
+++ b/quantity/voltage.odin
@@ -7,7 +7,7 @@ Volts :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_milli_volts procedure group.
 volts_to_milli_volts :: #force_inline proc "contextless" (
 	volts: Volts($V),
 ) -> Milli_Volts(V) where intrinsics.type_is_numeric(V) {
@@ -19,7 +19,7 @@ Milli_Volts :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_volts procedure group.
 milli_volts_to_volts :: #force_inline proc "contextless" (
 	milli_volts: Milli_Volts($V),
 ) -> Volts(V) where intrinsics.type_is_numeric(V) {
@@ -30,11 +30,11 @@ milli_volts_to_volts :: #force_inline proc "contextless" (
 // ----- Conversion Overloads ------------------------
 // ---------------------------------------------------------------------------------------------------------------------
 to_volts :: proc {
-    milli_volts_to_volts,
+	milli_volts_to_volts,
 }
 
 to_milli_volts :: proc {
-    volts_to_milli_volts,
+	volts_to_milli_volts,
 }
 
 // ---------------------------------------------------------------------------------------------------------------------
@@ -52,8 +52,8 @@ test_volts_to_milli_volts :: proc(t: ^testing.T) {
 
 @(test)
 test_milli_volts_to_volts :: proc(t: ^testing.T) {
-    milli_volts := Milli_Volts(int){1000}
-    volts := to_volts(milli_volts)
+	milli_volts := Milli_Volts(int){1000}
+	volts := to_volts(milli_volts)
 
-    testing.expect_value(t, volts, Volts(int){1})
+	testing.expect_value(t, volts, Volts(int){1})
 }
diff --git a/quantity/volume.odin b/quantity/volume.odin
index 2cc2f2a..d92d68c 100644
--- a/quantity/volume.odin
+++ b/quantity/volume.odin
@@ -10,21 +10,22 @@ Liters :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_milli_liters procedure group.
 liters_to_milli_liters :: #force_inline proc "contextless" (
 	liters: Liters($V),
 ) -> Milli_Liters(V) where intrinsics.type_is_numeric(V) {
 	return Milli_Liters(V){liters.v * MILLI}
 }
 
-@(private = "file", fast_math = {.Allow_Reciprocal})
+// Prefer the to_gallons procedure group.
+@(fast_math = {.Allow_Reciprocal})
 liters_to_gallons :: #force_inline proc "contextless" (
 	liters: Liters($V),
 ) -> Gallons(V) where intrinsics.type_is_float(V) {
 	return Gallons(V){liters.v / LITERS_PER_GALLON}
 }
 
-@(private = "file")
+// Prefer the to_micro_liters procedure group.
 liters_to_micro_liters :: #force_inline proc "contextless" (
 	liters: Liters($V),
 ) -> Micro_Liters(V) where intrinsics.type_is_numeric(V) {
@@ -36,14 +37,15 @@ Milli_Liters :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file", fast_math = {.Allow_Reciprocal})
+// Prefer the to_liters procedure group.
+@(fast_math = {.Allow_Reciprocal})
 milli_liters_to_liters :: #force_inline proc "contextless" (
 	milli_liters: Milli_Liters($V),
 ) -> Liters(V) where intrinsics.type_is_numeric(V) {
 	return Liters(V){milli_liters.v / MILLI}
 }
 
-@(private = "file")
+// Prefer the to_micro_liters procedure group.
 milli_liters_to_micro_liters :: #force_inline proc "contextless" (
 	milli_liters: Milli_Liters($V),
 ) -> Micro_Liters(V) where intrinsics.type_is_numeric(V) {
@@ -55,21 +57,24 @@ Micro_Liters :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file", fast_math = {.Allow_Reciprocal})
+// Prefer the to_liters procedure group.
+@(fast_math = {.Allow_Reciprocal})
 micro_liters_to_liters :: #force_inline proc "contextless" (
 	micro_liters: Micro_Liters($V),
 ) -> Liters(V) where intrinsics.type_is_numeric(V) {
 	return Liters(V){micro_liters.v / MICRO}
 }
 
-@(private = "file", fast_math = {.Allow_Reciprocal})
+// Prefer the to_milli_liters procedure group.
+@(fast_math = {.Allow_Reciprocal})
 micro_liters_to_milli_liters :: #force_inline proc "contextless" (
 	micro_liters: Micro_Liters($V),
 ) -> Milli_Liters(V) where intrinsics.type_is_numeric(V) {
 	return Milli_Liters(V){micro_liters.v / (MICRO / MILLI)}
 }
 
-@(private = "file", fast_math = {.Allow_Reciprocal})
+// Prefer the to_gallons procedure group.
+@(fast_math = {.Allow_Reciprocal})
 micro_liters_to_gallons :: #force_inline proc "contextless" (
 	micro_liters: Micro_Liters($V),
 ) -> Gallons(V) where intrinsics.type_is_float(V) {
@@ -81,14 +86,14 @@ Gallons :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_liters procedure group.
 gallons_to_liters :: #force_inline proc "contextless" (
 	gallons: Gallons($V),
 ) -> Liters(V) where intrinsics.type_is_float(V) {
 	return Liters(V){gallons.v * LITERS_PER_GALLON}
 }
 
-@(private = "file")
+// Prefer the to_micro_liters procedure group.
 gallons_to_micro_liters :: #force_inline proc "contextless" (
 	gallons: Gallons($V),
 ) -> Micro_Liters(V) where intrinsics.type_is_float(V) {
diff --git a/quantity/volume_rate.odin b/quantity/volume_rate.odin
index f5ed50b..42697e4 100644
--- a/quantity/volume_rate.odin
+++ b/quantity/volume_rate.odin
@@ -7,7 +7,7 @@ Liters_Per_Minute :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_gallons_per_minute procedure group.
 liters_per_minute_to_gallons_per_minute :: #force_inline proc "contextless" (
 	liters_per_minute: Liters_Per_Minute($V),
 ) -> Gallons_Per_Minute(V) where intrinsics.type_is_float(V) {
@@ -19,7 +19,7 @@ Gallons_Per_Minute :: struct($V: typeid) where intrinsics.type_is_numeric(V) {
 	v: V,
 }
 
-@(private = "file")
+// Prefer the to_liters_per_minute procedure group.
 gallons_per_minute_to_liters_per_minute :: #force_inline proc "contextless" (
 	gallons_per_minute: Gallons_Per_Minute($V),
 ) -> Liters_Per_Minute(V) where intrinsics.type_is_float(V) {