Inductance Converter
Convert between henries, millihenries, microhenries, nanohenries and other inductance units.
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Inductance units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the henry (H).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Henry | H | SI | Base unit |
| Millihenry | mH | SI | = 0.001 H |
| Microhenry | µH | SI | = 0.000001 H |
| Nanohenry | nH | SI | = 1e-9 H |
| Abhenry | abH | CGS | = 1e-9 H |
| Stathenry | statH | CGS | = 898755178736.81764 H |
Henry quick reference
| Henry | Millihenry | Microhenry | Nanohenry |
|---|---|---|---|
| 1 H | = 1000 mH | = 1000000 µH | = 1000000000 nH |
| 10 H | = 10000 mH | = 10000000 µH | = 10000000000 nH |
| 100 H | = 100000 mH | = 100000000 µH | = 100000000000 nH |
| 1000 H | = 1000000 mH | = 1000000000 µH | = 1000000000000 nH |
Among the 6 inductance units on this page, the smallest is the nanohenry (nH) and the largest is the stathenry (statH).
More inductance conversions
About inductance units
Inductance is the property of a coil or conductor that resists changes in current by storing energy in a magnetic field. Its SI unit is the henry (H): one weber of magnetic flux per ampere.
Power inductors in switching supplies are usually rated in µH, RF coils and stray inductance in nH, and large chokes in mH or H. Each metric step is a factor of 1000: 1 mH is 1000 µH.
Frequently asked questions
- How many microhenries are in a millihenry?
- Exactly 1000 µH.
- What is the plural of henry?
- Both "henries" and "henrys" are accepted in English. This site uses "henries".
- How many millihenries are in one henry?
- One henry = 1000 mH (millihenries).
- How many microhenries are in one henry?
- One henry = 1000000 µH (microhenries).
- How many nanohenries are in one henry?
- One henry = 1000000000 nH (nanohenries).