About the Units
milligram (mg)
A unit of mass equal to 0.001 grams or 10^-6 kilograms.
grain (gr)
A unit of mass equal to 64.79891 milligrams, originally based on the weight of a grain of barley.
Common Conversions
- 1 mg = 0.015432359 gr
- 64.798904 mg = 1 gr