g → mg
Grams to Milligrams Converter
1 gram (g) is equal to 1000 milligrams (mg). To convert grams to milligrams, multiply the gram value by 1000.
Grams to milligrams matters for medication doses, supplements and precision cooking: one gram contains 1,000 milligrams. A 0.5 g dose is 500 mg, and a typical paracetamol tablet is 0.5 g (500 mg).
How to convert grams to milligrams
milligrams = grams × 1000
Grams to Milligrams conversion table
| grams (g) | milligrams (mg) |
|---|---|
| 0.001 | 1 |
| 0.01 | 10 |
| 0.05 | 50 |
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 0.75 | 750 |
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 100 | 100000 |
Frequently asked questions
How many milligrams are in a gram?
There are 1000 milligrams in 1 gram. Multiply any gram value by 1000 to get the equivalent in milligrams.
What is 0.25 g in milligrams?
0.25 g equals 250 mg. You can verify this with the interactive converter above — the result updates instantly as you type.
What is the formula to convert grams to milligrams?
milligrams = grams × 1000. For example, 2 g × 1000 = 2000 mg.
Can I weigh something in grams without a scale?
Yes — Scale for Grams estimates an object's weight from a single photo using computer vision, and shows the result in grams, kilograms, pounds and ounces at once. It works free in the browser at scaleforgrams.com with no account required.
Scale for Grams
Don't know the gram value? Weigh it with a photo.
Scale for Grams estimates any object's weight from a single photo and shows it in grams, kilograms, pounds and ounces at once — free, in your browser.
Try the photo scale