About the Units
dalton (Da)
A unit of mass approximately equal to the mass of a hydrogen atom, used in atomic and molecular physics.
grain (gr)
A unit of mass equal to 64.79891 milligrams, originally based on the weight of a grain of barley.
Common Conversions
- 1 Da = 2.5626036e-23 gr
- 3.9022813e22 Da = 1 gr