Inductance Converter
Convert inductance units with the factor behind each answer.
1 mH = 1,000 µH
Common conversions
- 1 mH = 1,000 µH
- 1 µH = 0.001 mH
- 1 H = 1,000 mH
- 1 mH = 0.001 H
Inductive reactance
In an AC circuit an inductor opposes current with a reactance XL = 2π f L, in ohms, with f in hertz and L in henries. Convert L to henries first, then apply the formula.
Inductive reactance example
At 50 Hz, 1 H gives XL = 314.16 Ω. The size in farads or henries comes from the factor table above.
Unit factors
Every unit in terms of the base unit shown. To convert, multiply by the factor of the unit you have and divide by the factor of the unit you want.
| Unit | Equals | What it is |
|---|---|---|
| µH | 1 × 10⁻⁶ H | Microhenry. |
| mH | 0.001 H | Millihenry. Chokes and reactors. |
| H | 1 H | Henry, the SI unit of inductance. |
Frequently asked questions
What is the formula to convert mH to µH?
µH = mH × 1,000. For example, 25 mH is 25,000 µH.
How do I convert µH back to mH?
mH = µH × 0.001. The Swap button above reverses the direction for any pair of units.
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