Density and Mass
mgtoµg
Convert milligrams (mg) to micrograms (µg).
Factor1 mg = 1000 µg
Converter
mg
Accepts numbers or expressions, e.g. 150 + 14.7
Result
µg
Rendered to 6 significant figures.
Formula
Formula
µg = mg × 1000
Multiply any value in milligrams by 1000 to obtain the value in micrograms.
Worked example
Convert 1 mg to µg.
- 01Start with 1 mg.
- 02Multiply by the conversion factor: 1 × 1000 = 1000 µg.
Result1 mg = 1000 µg
Conversion table
| mg | µg |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 1.0000e+5 |
| 200 | 2.0000e+5 |
| 500 | 5.0000e+5 |
| 1000 | 1.0000e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mg to µg?
1 mg equals 1000 µg. To convert, multiply the value in milligrams by 1000.
How do I convert 1 mg to µg?
1 mg = 1000 µg. For any value, multiply by 1000.
How do I convert µg back to mg?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 µg = 0.001 mg.
When would I need to convert milligram to microgram?
Mass conversions appear in material balances, reagent dosing, and reconciling vendor specifications across imperial/metric systems.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).