How to use it
- Type a number. A dot or a comma works as the decimal separator.
- Choose the unit you have and the unit you need. The ⇄ button swaps them.
- The table below shows the same value in all common units at once.
Conversion factors
Every unit is converted through the henry (H).
| Unit | Value |
|---|---|
| 1 millihenry (mH) | 0.001 H |
| 1 microhenry (µH) | 10⁻⁶ H = 1,000 nH |
| 1 nanohenry (nH) | 10⁻⁹ H |
| 1 picohenry (pH) | 10⁻¹² H |
Worked example
A 220 µH choke is 220 × 10⁻⁶ H = 0.22 mH = 220,000 nH.
Quick reference
- 1 mH = 1,000 µH = 1,000,000 nH
- Inductors in series add; in parallel the reciprocals add (without coupling)
- Reactance of an inductor is X = 2πfL