To convert milligrams to grams, use grams = milligrams ÷ 1,000. Equivalently, multiply by 0.001. For example, 5 mg = 0.005 g.
How to convert MG to Grams
- Type the value in milligrams.
- The answer in grams appears instantly, with the formula.
- Use ⇄ to swap the direction, or pick other units.
MG to Grams formula
grams = milligrams ÷ 1,000
Equivalently, multiply by 0.001.
Example: 5 mg = 0.005 g.
Reverse: 1 g = 1,000 mg (see Grams to MG).
MG to Grams conversion table
| Milligram (mg) | Gram (g) |
|---|---|
| 1 | 0.001 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 75 | 0.075 |
| 100 | 0.1 |
| 125 | 0.125 |
| 150 | 0.15 |
| 200 | 0.2 |
| 250 | 0.25 |
| 300 | 0.3 |
| 400 | 0.4 |
| 500 | 0.5 |
| 600 | 0.6 |
| 750 | 0.75 |
| 800 | 0.8 |
| 1,000 | 1 |
| 1,500 | 1.5 |
| 2,000 | 2 |
| 5,000 | 5 |
| 10,000 | 10 |
About these units
Milligram (mg): One thousandth of a gram. Used for medicine doses and nutrition labels.
Gram (g): One thousandth of a kilogram. Used for food, gold and small items.
Frequently asked questions
How many grams are in a milligram?
There are 0.001 grams in one milligram.
How do I convert milligrams to grams?
grams = milligrams ÷ 1,000. Equivalently, multiply by 0.001. Example: 5 mg = 0.005 g.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested