Grams to Milligrams
Convert grams to milligrams instantly. 1 g = 1,000 mg
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Quick answers
- 1 g = 1,000 mg
- 5 g = 5,000 mg
- 10 g = 10,000 mg
- 20 g = 20,000 mg
- 50 g = 50,000 mg
- 100 g = 100,000 mg
Grams to Milligrams conversion table
| Grams (g) | Milligrams (mg) |
|---|---|
| 1 g | 1,000 mg |
| 2 g | 2,000 mg |
| 3 g | 3,000 mg |
| 4 g | 4,000 mg |
| 5 g | 5,000 mg |
| 6 g | 6,000 mg |
| 7 g | 7,000 mg |
| 8 g | 8,000 mg |
| 9 g | 9,000 mg |
| 10 g | 10,000 mg |
| 15 g | 15,000 mg |
| Grams (g) | Milligrams (mg) |
|---|---|
| 20 g | 20,000 mg |
| 25 g | 25,000 mg |
| 30 g | 30,000 mg |
| 40 g | 40,000 mg |
| 50 g | 50,000 mg |
| 75 g | 75,000 mg |
| 100 g | 100,000 mg |
| 250 g | 250,000 mg |
| 500 g | 500,000 mg |
| 1,000 g | 1,000,000 mg |
Dose sizes
- Low-dose aspirin0.081 g equals 81 mg
- Paracetamol tablet (common)0.5 g equals 500 mg
- Ibuprofen tablet (common)0.2 g equals 200 mg
Conversion formula
milligrams = grams × 1,000
Example: 10 g × 1,000 = 10,000 mg
A gram is one thousandth of a kilogram. A milligram is one thousandth of a gram, the unit on most medicine and supplement labels.
You may also see this conversion written as “grams to mg” or “grams in mg”.
Questions
How many milligrams are in one gram?
One gram is 1,000 milligrams.
How do you convert grams to milligrams?
Multiply by 1,000. The factor comes from the exact definitions of both units, so the only rounding is in the display.
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