mg to grams
Convert small masses without confusing milli- and micro- prefixes. One gram contains 1,000 milligrams.
Edit either value. Use a decimal point; commas group thousands. Rounding affects display only.
How to convert milligrams to grams
Convert small masses without confusing milli- and micro- prefixes. One gram contains 1,000 milligrams.
Formula coefficients shown rounded. Calculations use the stored factors before display rounding.
A worked example
For 10 mg, the result is approximately 0.01 g. To go the other way, edit the result above or swap the units.
Pounds and ounces are avoirdupois mass units. Fluid ounces belong under volume. A metric tonne differs from US and UK tons.
Where the numbers come from
Factors follow NIST conversion references and documented unit definitions. Read our accuracy and rounding notes.
The table and method describe this page’s original pair. Changing units above does not change this reference section.
| Milligrams (mg) | Grams (g) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1000 | 1 |