Grams to milligrams
1 gram = 1000 milligrams
For any other value: mg = g × 1000
Calculator
1500 mg
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You can leave the unit in: 100 g is fine.
Grams to milligrams chart
The values people look up most.
| grams | milligrams |
|---|---|
| 1.5 g | 1500 mg |
| 2 g | 2000 mg |
| 1 g | 1000 mg |
| 5 g | 5000 mg |
| 3 g | 3000 mg |
| 4 g | 4000 mg |
| 60 g | 60000 mg |
| 3.5 g | 3500 mg |
| 6 g | 6000 mg |
| 2.5 g | 2500 mg |
| 10 g | 10000 mg |
| 50 g | 50000 mg |
| 25 g | 25000 mg |
| 30 g | 30000 mg |
| 0.5 g | 500 mg |
| 20 g | 20000 mg |
| 1.2 g | 1200 mg |
| 15 g | 15000 mg |
| 8 g | 8000 mg |
| 0.3 g | 300 mg |
| 9 g | 9000 mg |
| 12 g | 12000 mg |
| 100 g | 100000 mg |
| 0.2 g | 200 mg |
| 0.25 g | 250 mg |
| 1.6 g | 1600 mg |
| 0.05 g | 50 mg |
| 75 g | 75000 mg |
| 0.1 g | 100 mg |
| 1.8 g | 1800 mg |
Formula
mg = g × 1000
1000 milligrams make a gram. Supplement doses are usually in milligrams.
Where this number comes from
This factor is exact, not rounded. SI prefixes: milli is 10⁻³.
Source: The International System of Units (SI Brochure), BIPM (Bureau International des Poids et Mesures).
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