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Milligram to Gram
Convert milligram (mg) to gram (g) — with the exact factor, a quick-reference table and a free converter that works offline.
1 mg = 0.001 g
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Open the free converter with this conversion pre-loaded — no sign-up, works offline after first load.
Conversion table
| Milligram (mg) | Gram (g) |
|---|---|
| 100 mg | 0.1 g |
| 500 mg | 0.5 g |
| 1,000 mg | 1 g |
| 5,000 mg | 5 g |
| 10,000 mg | 10 g |
| 50,000 mg | 50 g |
| 100,000 mg | 100 g |
| 500,000 mg | 500 g |
How the conversion works
Both units measure mass. One milligram equals exactly 0.001 g, so multiply by that factor to convert.
FAQ
How many grams in a milligram?
1 mg = 0.001 g.
How do I convert milligram to gram?
Multiply the milligram value by 0.001. For example, 10 mg × 0.001 = 0.01 g.
Where does the factor come from?
The conversion factor is defined in BIPM SI Brochure; both units are mass units converted through kilogram.
Related conversions
Conversion factors: BIPM SI Brochure. Computed by the same engine that powers the app.
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