Mg to G ConverterRight in Your Browser
Convert milligrams (mg) to grams (g). The milligram (mg) is one thousandth of a gram, the standard unit for medicine doses and vitamins worldwide. The gram (g) is the metric unit for small weights — recipe ingredients, letters and nutrition labels worldwide. Everything is calculated locally in your browser — no server, and it works offline.
0.001 g
in grams (gram)
To convert milligrams to grams, multiply the milligram value by 0.001.
Switch to G to MgMg to G Chart
| Milligrams (mg) | Grams (g) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
Frequently Asked Questions
How many grams are in a milligram?
One milligram equals 0.001 grams (1 mg = 0.001 g). So to go from milligrams to grams, multiply the milligram value by 0.001.
What is the formula to convert milligrams to grams?
To convert milligrams to grams, multiply the milligram value by 0.001. For example, 10 mg is 0.01 g.
What is 500 milligrams in grams?
500 milligrams — a typical paracetamol tablet — is 0.5 grams. The converter above works for any value, entirely in your browser.
Is the milligram to gram conversion exact?
The factor used here is the defined value: 1 mg = 0.001 g. Results are rounded to six significant digits for readability, so for high-precision work use the full factor.