Convert grams to milligrams and milligrams to grams instantly. Bidirectional weight converter with formula and common values.
To convert grams to milligrams, multiply by 1,000. Simply move the decimal point three places to the right to get the equivalent in milligrams.
| Grams | Milligrams |
|---|---|
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 1.5 | 1,500 |
| 2.5 | 2,500 |
| 5 | 5,000 |
| 15 | 15,000 |
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One gram equals exactly 1,000 milligrams.
Multiply the number of grams by 1,000. For example, 0.5 g × 1,000 = 500 mg.
The prefix "milli" means one-thousandth (1/1,000), so a milligram is one-thousandth of a gram.
Milligrams are commonly used for medication dosages, nutritional information, and measuring small quantities in chemistry.