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Anonymous
1 mg = 10^-3 grams 1 kg = 10^3 gramsSince you're converting to a larger value with a larger prefix, the number will go down.400 mg = 0.4 grams0.4 grams = .0004 kg
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1,000 grams in a kilogram.
400 grams is 0.4 of a kilogram.
400 mg = 0.4 g
400
1200 mg = 0.0012 kg