1 gram (g) = 1,000 milligrams (mg). To convert, multiply by 1,000: mg = g × 1,000. For example, 5 g = 5,000 mg.
mg = g × 1,000
Grams to milligrams table
| Grams (g) | Milligrams (mg) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
The two units
Gram (g). One thousandth of a kilogram.
Milligram (mg). One thousandth of a gram, common on medicine and nutrition labels.
Convert grams to other units
- Grams to kilograms — 1 g = 0.001 kg
- Grams to micrograms — 1 g = 1,000,000 µg
- Grams to metric tons — 1 g = 0.000001 t
- Grams to pounds — 1 g = 0.0022046226 lb
- Grams to ounces — 1 g = 0.035273962 oz
- Grams to stones — 1 g = 0.000157473 st
- Grams to short tons — 1 g = 0.0000011023 ton (US)
- Grams to long tons — 1 g = 9.842065e-7 ton (UK)
Convert other units to milligrams
Questions people ask
- How many milligrams are in a gram?
- 1,000.
- How do you convert grams to milligrams?
- mg = g × 1,000. It is the same as dividing by 0.001.
- How do you convert milligrams back to grams?
- g = mg ÷ 1,000. See milligrams to grams.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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