How to convert grams to milligrams
To convert grams (g) to milligrams (mg), multiply the value in grams by 1,000.
mg = g × 1,000
Example: 10 g = 10,000 mg.
You can also type 10 g to mg into the smart calculator, or mix units: 1 g + 1 mg.
Grams to Milligrams conversion table
| Grams | Milligrams |
|---|---|
| 0.01 g | 10 mg |
| 0.1 g | 100 mg |
| 0.25 g | 250 mg |
| 0.5 g | 500 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 |
| 12 g | 12,000 mg |
| 15 g | 15,000 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 |
| 60 g | 60,000 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 |
Converting milligrams back to grams
1 mg = 0.001 g. See the Milligrams to Grams converter, or press the swap button above.
About the units
Gram (g)
One thousandth of a kilogram.
Milligram (mg)
One thousandth of a gram.
Mass is the amount of matter in an object; in everyday speech it is called weight. The SI base unit is the kilogram, defined since 2019 through the Planck constant. The international avoirdupois pound is defined as exactly 0.45359237 kilograms.
Questions and answers
How many milligrams are in a gram?
One gram (g) equals 1,000 milligrams (mg).
How do I convert grams to milligrams?
To convert grams to milligrams, multiply the value in grams by 1,000. The formula is mg = g × 1,000. For example, 10 g = 10,000 mg.
What is 10 g in mg?
10 grams is 10,000 milligrams.
Which is bigger, a gram or a milligram?
A gram is bigger: 1 g = 1,000 mg.
What is the difference between a ton and a tonne?
A tonne (metric ton) is 1,000 kg. A US short ton is 2,000 lb (907.18 kg) and an imperial long ton is 2,240 lb (1,016.05 kg).
Does this g to mg converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.