Convert Milligram to Gram
Convert Milligram to Gram instantly. 1 mg = 0.001 g. Formula, worked examples and a quick reference table.
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One milligram equals 0.001 gram. To convert any number of milligrams to grams, multiply by 0.001.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Milligram to Gram formula
gram = milligram × 0.001
To go the other way, use milligram = gram ÷ 0.001.
Milligram to Gram conversion table
| Milligram | Gram |
|---|---|
| 1 mg | 0.001 g |
| 2 mg | 0.002 g |
| 3 mg | 0.003 g |
| 5 mg | 0.005 g |
| 10 mg | 0.01 g |
| 20 mg | 0.02 g |
| 25 mg | 0.025 g |
| 50 mg | 0.05 g |
| 100 mg | 0.1 g |
| 250 mg | 0.25 g |
| 500 mg | 0.5 g |
| 1,000 mg | 1 g |
Frequently asked questions
How many grams are in a milligram? +
There are 0.001 grams in one milligram.
What is 10 mg in g? +
10 mg equals 0.01 g. Multiply 10 by 0.001.
How do I convert gram back to milligram? +
Use milligram = gram ÷ 0.001. The converter above handles both directions, or see our dedicated Gram to Milligram page.