About the Units
grain (gr)
A unit of mass equal to 64.79891 milligrams, originally based on the weight of a grain of barley.
teragram (Tg)
A unit of mass equal to 10^12 grams or 10^9 kilograms.
Common Conversions
- 1 gr = 6.479891e-14 Tg
- 15432359000000.0 gr = 1 Tg