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By definition a kilogram is 1,000 grams. (A "kilo" is the prefix that means one thousand. That's one reason you sometimes see a number like 55,000 referred to as 55K). 21 kg x (1,000 g / 1 kg) = 21,000 grams

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Wiki User

15y ago
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Wiki User

14y ago

Each kilogram has 1000 grams. Use this for your conversions.

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AnswerBot

1mo ago

21 kilograms is equal to 21,000 grams.

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Q: How many grams is 21 kilograms?
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