With this information, you can calculate the quantity of kilograms 645 grams is equal to.
¿What is the inverse calculation between 1 kilogram and 645 grams?
Performing the inverse calculation of the relationship between units, we obtain that 1 kilogram is 1.5503876 times 645 grams.
Which is the same to say that 645 grams is 0.645 kilograms.
Six hundred forty-five grams equals to zero kilograms. *Approximation
A kilogram is one times six hundred forty-five grams. *Approximation