You can easily convert 500 grams into kilograms using each unit definition:
With this information, you can calculate the quantity of kilograms 500 grams is equal to.
In 500 g there are 0.5 kg.
Which is the same to say that 500 grams is 0.5 kilograms.
Five hundred grams equals to zero kilograms. *Approximation
Performing the inverse calculation of the relationship between units, we obtain that 1 kilogram is 2 times 500 grams.
A kilogram is two times five hundred grams. *Approximation