Milligram (mg)
One thousandth of a gram, used for doses and nutrition labels.
Result
1 milligram = 0.001 grams
Milligram at a glance
| Unit name | Milligram (plural: milligrams) |
|---|---|
| Symbol | mg |
| Quantity measured | Weight & Mass |
| Measurement system | Metric |
| Also known as | mg, milligrammes |
| Definition exact? | Yes — exact by definition |
1 milligram in other weight & mass units
| Unit | 1 mg equals |
|---|---|
| Microgram | 1,000 µg |
| Gram | 0.001 g |
| Kilogram | 0.000001 kg |
| Metric ton | 1 × 10⁻⁹ t |
| Ounce | 0.000035274 oz |
| Pound | 0.000002205 lb |
| Stone | 0.000000157 st |
| US short ton | 1.10231131 × 10⁻⁹ ton |
| Imperial long ton | 9.84206528 × 10⁻¹⁰ long ton |
| Carat | 0.005 ct |
| Grain | 0.015432358 gr |
| Dram | 0.000564383 dr |
| Troy ounce | 0.000032151 ozt |
| US hundredweight | 2.20462262 × 10⁻⁸ cwt |
| Imperial hundredweight | 1.96841306 × 10⁻⁸ long cwt |
Frequently asked questions
- What is a milligram?
- One thousandth of a gram, used for doses and nutrition labels.
- What is the symbol for the milligram?
- The symbol for the milligram is mg. It measures weight & mass.
- How many grams are in a milligram?
- 1 milligram = 0.001 grams.
- How many kilograms are in a milligram?
- 1 milligram = 0.000001 kilograms.
- How many metric tons are in a milligram?
- 1 milligram = 1 × 10⁻⁹ metric tons.