Convert Milligrams to Grams
One milligram equals 0.001 grams. Type any value to convert milligrams to grams instantly — with a full reference table below.
Convert Milligrams to Grams
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Conversion formula
To convert milligrams to grams, multiply by 0.001. One milligram equals 0.001 g, and one gram equals 1,000 mg.
Milligrams to Grams table
About converting Milligrams to Grams
Milligrams (mg) and Grams (g) are both units of weight. The exact factor is 1 mg = 0.001 g, so multiply by 0.001 to go from milligrams to grams (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Grams to Milligrams converter, or the full unit converter for every unit at once.
Frequently asked questions
How many grams are in one milligram?
One milligram equals 0.001 grams.
How do I convert milligrams to grams?
Multiply the number of milligrams by 0.001. For example, 10 milligrams = 0.01 grams.
What is 5 milligrams in grams?
5 milligrams is 0.005 grams.