Full name: milligram
Plural form: milligrams
Category type: weight
Scale factor: 1.0E-6
The SI base unit for mass is the kilogram.
The SI derived unit for weight or force is the newton.
1 kilogram is equal to 1000000 mg.
Valid units must be of the weight type.
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The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 milligram = 10-3 grams-force.