MG to G Converter
Type a value in milligrams to see it in grams as you type, with the exact formula and a reference chart.
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How this was calculated
- 1 gram = 1,000 milligrams
- 1,000 ÷ 1,000 = 1 g
| mg | g |
|---|---|
| 1 mg | 0.001 g |
| 5 mg | 0.005 g |
| 10 mg | 0.01 g |
| 25 mg | 0.025 g |
| 50 mg | 0.05 g |
| 100 mg | 0.1 g |
| 120 mg | 0.12 g |
| 150 mg | 0.15 g |
| 200 mg | 0.2 g |
| 250 mg | 0.25 g |
| 300 mg | 0.3 g |
| 400 mg | 0.4 g |
| 500 mg | 0.5 g |
| 750 mg | 0.75 g |
| 1,000 mg | 1 g |
| 1,500 mg | 1.5 g |
| 2,000 mg | 2 g |
| 2,500 mg | 2.5 g |
| 3,000 mg | 3 g |
| 4,000 mg | 4 g |
| 5,000 mg | 5 g |
| 10,000 mg | 10 g |
| g | mg |
|---|---|
| 0.001 g | 1 mg |
| 0.005 g | 5 mg |
| 0.01 g | 10 mg |
| 0.025 g | 25 mg |
| 0.05 g | 50 mg |
| 0.1 g | 100 mg |
| 0.2 g | 200 mg |
| 0.25 g | 250 mg |
| 0.3 g | 300 mg |
| 0.5 g | 500 mg |
| 0.6 g | 600 mg |
| 0.75 g | 750 mg |
How to convert milligrams to grams
1 milligram = 0.001 grams. To convert milligrams to grams, divide by 1,000 (or multiply by 0.001). A milligram is one thousandth of a gram. A gram is one thousandth of a kilogram.
Worked examples
- 500 milligrams = 0.5 g (500 ÷ 1,000)
- 1,000 milligrams = 1 g (1,000 ÷ 1,000)
- 2,500 milligrams = 2.5 g (2,500 ÷ 1,000)
Where this conversion comes up
Milligrams are used for medicine doses, vitamins, caffeine and sodium on labels; grams for food labels, baking scales and jewelry. A gram is exactly 1,000 mg, so a 500 mg capsule holds 0.5 g and a 2,000 mg daily limit is 2 g. Supplement and medicine labels use milligrams while nutrition facts, recipes and lab work often use grams.
Quick estimate
Move the decimal point three places left (divide by 1,000).
Common mistakes
- Multiplying instead of dividing. A gram is larger than a milligram, so the number of grams must come out smaller: 500 milligrams = 0.5 g.
Going the other way? Use the g to mg converter. Related weight converters: grams to ounces, oz to grams, oz to lbs, lbs to oz, grams to pounds, pounds to grams.
Frequently asked questions
How do you convert milligrams to grams?
Multiply the milligrams by 0.001 (or divide by 1,000). For example, 1,000 milligrams is 1 grams.
How many grams are in one milligram?
One milligram is 0.001 grams. A milligram is one thousandth of a gram.
What is 2,500 milligrams in grams?
2,500 milligrams is 2.5 grams.
Is there a quick way to estimate milligrams to grams?
Move the decimal point three places left (divide by 1,000).
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