About the Units
grain (gr)
A unit of mass equal to 64.79891 milligrams, originally based on the weight of a grain of barley.
hundredweight (long) (cwt long)
A unit of mass equal to 112 pounds or approximately 50.8 kilograms, used in the imperial system.
Common Conversions
- 1 gr = 0.00000127551 cwt long
- 784000.06 gr = 1 cwt long