QUICK CONVERSION
Grams to Milligrams
Enter a value to convert grams to milligrams, or use the right-hand input to convert in reverse.
How to convert grams to milligrams
Multiply the number of grams by 1,000 to get milligrams.
Formula: Milligrams = Grams × 1,000.
Common conversion values
| Grams (g) | Milligrams (mg) |
|---|---|
| 0 | 0 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
Important measurement notes
The pound used here is the international avoirdupois pound. The stone is 14 avoirdupois pounds.
Related conversions
Figures are rounded for display. For regulated or safety-critical work, confirm the relevant measurement standard and precision.