1 milligram = 0.001 grams
Convert milligrams to grams.
Both directions on one page — swap the units and the whole thing runs backwards.
Type a value, or “5cm to in”
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The formula
g = mg × 0.001
Worked through with a real value: 10 milligrams = 0.01 grams.
Going the other way: mg = g × 1000, so 1 gram = 1000 milligrams.
What each unit is
- milligram mg
- A millionth of a kilogram, used for medicine dosages, vitamin content and chemical precision.
- gram g
- A thousandth of a kilogram, the everyday metric unit for food, medicine and small measurements.
Where these come from
- 1 milligram = 1e-06 kilograms
- 1 gram = 0.001 kilograms
Every other number on this page is computed from those, and each category is pinned to conversions worked out by hand from the units' primary definitions before it ships.
Conversion tables
| milligrams (mg) | grams (g) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 6 | 0.006 |
| 7 | 0.007 |
| 8 | 0.008 |
| 9 | 0.009 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 75 | 0.075 |
| 100 | 0.1 |
| grams (g) | milligrams (mg) |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 4 | 4000 |
| 5 | 5000 |
| 6 | 6000 |
| 7 | 7000 |
| 8 | 8000 |
| 9 | 9000 |
| 10 | 10000 |
| 20 | 20000 |
| 25 | 25000 |
| 50 | 50000 |
| 75 | 75000 |
| 100 | 100000 |
Questions
How many grams are in a milligram?
1 milligram = 0.001 grams.
How do I convert milligrams to grams?
Use g = mg × 0.001. For example, 10 milligrams = 0.01 grams.
How many milligrams are in one gram?
1 gram = 1000 milligrams.
What is 10 milligrams in grams?
10 milligrams = 0.01 grams.
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