About the Units
grain (gr)
A unit of mass equal to 64.79891 milligrams, originally based on the weight of a grain of barley.
yoctogram (yg)
A unit of mass equal to 10^-24 grams or 10^-27 kilograms.
Common Conversions
- 1 gr = 6.4798904e22 yg
- 1.543236e-23 gr = 1 yg