About the Units
attogram (ag)
A unit of mass equal to 10^-18 grams or 10^-21 kilograms.
carat (ct)
A unit of mass equal to 200 milligrams, used for measuring gemstones and pearls.
Common Conversions
- 1 ag = 5.0000003e-18 ct
- 199999980000000000.0 ag = 1 ct