Milligrams to Grams Converter
1 milligram = 0.001 grams
1 milligram equals 0.001 grams
How to convert milligrams to grams
These units measure mass. Pounds and ounces mean avoirdupois unless the unit explicitly says troy; a fluid ounce measures volume and requires a density to relate it to mass.
g = mg × 0.001One milligram is 0.001 grams, so a single multiplication converts any value.
0.01 g = 10 × 0.001Milligrams to grams conversion table
Common values in milligrams, converted to grams.
| Milligrams (mg) | Grams (g) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
About these units
milligrammg
One thousandth of a gram, the standard unit for medication doses.
gramg
One thousandth of a kilogram. The everyday metric unit for small masses.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.