Milligrams to Micrograms Converter
Convert milligrams (mg) to micrograms (µg), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a weight, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 mg = 1000 µg
- 1 × 1000 = 1000 µg
How to convert milligrams to micrograms
1 mg = 1,000 µg, so multiply by 1,000 to go from milligrams to micrograms. Going the other way, 1 µg = 0.001 mg.
µg = mg × 1,000 mg = µg × 0.001
Worked example:
1 mg = 1000 µg 5 × 1000 = 5000 µg
Milligrams to micrograms table
| Milligrams | Micrograms |
|---|---|
| 1 mg | 1,000 µg |
| 2 mg | 2,000 µg |
| 3 mg | 3,000 µg |
| 4 mg | 4,000 µg |
| 5 mg | 5,000 µg |
| 6 mg | 6,000 µg |
| 7 mg | 7,000 µg |
| 8 mg | 8,000 µg |
| 9 mg | 9,000 µg |
| 10 mg | 10,000 µg |
| 15 mg | 15,000 µg |
| 20 mg | 20,000 µg |
| 25 mg | 25,000 µg |
| 30 mg | 30,000 µg |
| 40 mg | 40,000 µg |
| 50 mg | 50,000 µg |
| 75 mg | 75,000 µg |
| 100 mg | 100,000 µg |
| 250 mg | 250,000 µg |
| 500 mg | 500,000 µg |
| 1000 mg | 1,000,000 µg |
About the units
- Milligrams (mg)
- Milligrams, a metric unit. Definition: BIPM SI Brochure.
- Micrograms (µg)
- Micrograms, a metric unit. Definition: BIPM SI Brochure (SI prefixes).
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