What this tool does
It converts a mass written in one metric unit into another. Because all three units are powers of ten apart, the conversion is exact apart from display rounding.
Inputs and outputs
Enter a positive number, choose the unit it is in and the unit you want. The result appears with the unit beside it and three lines of math.
Formula
1 g = 1,000 mg = 1,000,000 mcg
| From | To | Do this |
|---|---|---|
| mg | mcg | multiply by 1,000 |
| mcg | mg | divide by 1,000 |
| g | mg | multiply by 1,000 |
| mcg | g | divide by 1,000,000 |
Generic example. 0.25 mg × 1,000 = 250 mcg. And 750 mcg ÷ 1,000 = 0.75 mg.
Limitations
- Mass units only. Volume units belong in the mL to µL converter.
- IU is intentionally not supported.
Common mistakes
- Moving the decimal the wrong way. Going to a smaller unit makes the number bigger.
- Reading 0.5 mg as 5 mcg. It is 500 mcg.
- Leaving off the unit when writing the result down.