MG to Grams Converter
Useful for reading nutrition labels and supplement doses that switch between milligrams and grams.
1 mg = 0.001 g
grams
1 mg = 0.001 g
How to convert milligrams to grams
Multiply the number of milligrams by 0.001.
Formula
g = mg × 0.001
Examples
- 250 mg × 0.001 = 0.25 g
- 1,500 mg × 0.001 = 1.5 g
- 2,300 mg × 0.001 = 2.3 g
Milligrams to grams conversion table
| Milligrams (mg) | Grams (g) |
|---|---|
| 1 | 0.001 |
| 5 | 0.005 |
| 10 | 0.01 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 250 | 0.25 |
| 400 | 0.4 |
| 500 | 0.5 |
| 750 | 0.75 |
| 1,000 | 1 |
| 1,500 | 1.5 |
| 2,000 | 2 |
| 2,300 | 2.3 |
| 5,000 | 5 |
| 10,000 | 10 |
Values rounded to 4 decimal places or 4 significant digits.
About milligrams
The milligram is one thousandth of a gram. Medication doses and the vitamin, mineral and sodium figures on nutrition labels are usually given in milligrams.
About grams
The gram is one thousandth of a kilogram. It is the standard unit for food packaging, metric recipes and postage weights.
Frequently asked questions
How many grams are in one milligram?
One milligram equals 0.001 grams.
How do I convert milligrams to grams?
Multiply the number of milligrams by 0.001. For example: 1,500 mg × 0.001 = 1.5 g.
How many milligrams are in one gram?
One gram equals 1,000 milligrams.
Is the mg to g conversion exact?
Yes. The factor follows directly from the official definitions of both units, so the only rounding is in how many decimals are displayed.