Grams to milligrams (g to mg)
Type a value in grams and get the result in milligrams instantly — with the exact factor, a step-by-step formula and a table of common values.
Sources: NIST — Guide to the SI, Appendix B.9 (conversion factors by kind of quantity: mass)
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How to convert grams to milligrams
1 g = 1,000 mg
1 mg = 0.001 g
To convert grams to milligrams, multiply the value by 1,000.
Example: 5 g × 1,000 = 5,000 mg.
Grams to milligrams conversion table
| Grams (g) | Milligrams (mg) |
|---|---|
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 50 | 50,000 |