With this information, you can calculate the quantity of kilograms 421 grams is equal to.

¿What is the inverse calculation between 1 kilogram and 421 grams?

Performing the inverse calculation of the relationship between units, we obtain that 1 kilogram is 2.3752969 times 421 grams.

Which is the same to say that 421 grams is 0.421 kilograms.

Four hundred twenty-one grams equals to zero kilograms. *Approximation

A kilogram is two times four hundred twenty-one grams. *Approximation