Yes. 9 kilograms is greater than 900 grams.
When you convert grams to kilograms, 1 kilogram equals 1000 grams.
So 9 kg = 9000 g
But when you are converting grams to kilograms, you get this:
900 g = 0.9 kg
So, therefore, 9 kilograms is greater than 900 grams.