1 kilogram is the same as 1000 mg

Weight/Mass

1,000 milligrams (mg) = 1 gram

10 centigrams = 100 milligrams (mg)

1 gram (g) = 1,000 milligrams

1,000 grams = 1 kilogram (kg) = 1,000,000 mg

1,000 kilograms = 1,000,000 grams