About the Units
grain (gr)
A unit of mass equal to 64.79891 milligrams, originally based on the weight of a grain of barley.
megagram (Mg)
A unit of mass equal to 10^6 grams or 1000 kilograms, equivalent to a metric ton.
Common Conversions
- 1 gr = 6.4798904e-8 Mg
- 15432359.0 gr = 1 Mg