Henry to Millihenry Converter
1 Henry equals 1,000 Millihenries (mH). Inductance is measured in henries (H). Most practical inductors used in electronics — from power supplies to RF filters — are in the millihenry (mH) or microhenry (µH) range. Use the converter below to change any henries value into millihenries instantly.
Formula
Formula
Millihenry = Henry × 1,000
Henry to Millihenry table
| H | mH |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
Frequently asked questions
How many Millihenries are in a Henry?
1 Henry equals 1,000 Millihenries.
How do you convert Henries to Millihenries?
Use the formula: Millihenry = Henry × 1,000. For example, 10 Henries equals 10,000 Millihenries.
What is 1 Henry in Millihenries?
1 Henry (H) is equal to 1,000 Millihenries (mH).
What is a henry?
The henry (H) is the SI unit of inductance. A coil has an inductance of one henry when a current change of one ampere per second induces an electromotive force of one volt. It is named after Joseph Henry, who independently discovered electromagnetic induction alongside Michael Faraday.
What inductance values are typical in electronics?
Power supply inductors: 1 µH – 10 mH. RF chokes and filters: 10 nH – 100 µH. Audio transformers: 1 mH – several henries. Motor windings and power transformers: 10 mH – several henries. Microhenry values (µH) are standard in switch-mode power supplies (SMPS).