Inductance Converter — Henry (H), mH, μH, nH
Convert between 6 units of inductance — henry (H), millihenry (mH), microhenry (μH), nanohenry (nH), picohenry (pH), and abhenry. Inductance measures a conductor's ability to store energy in a magnetic field. RF choke coils are typically 100 nH; power inductors range from 1 μH to 100 mH; power line filters use henries. Mutual inductance between coils is the principle behind transformers and wireless charging.
About the Inductance Converter
Inductance measures a conductor's ability to store energy in a magnetic field when current flows through it. The SI unit is the henry (H). Inductors oppose changes in current — the higher the inductance, the slower the current can change. Practical inductors range from nanohenries (nH) in high-frequency RF circuits to henries in power line filters and transformers. Together with capacitance, inductance forms the basis of LC resonant circuits used in radio tuning and signal processing.
- ›A small RF choke coil might be 100 nH; a large power inductor can be 100 mH or more
- ›The Earth's ionosphere acts as a huge inductor in the Schumann resonance cavity (~8 Hz)
- ›Mutual inductance between coils is the principle behind transformers and wireless charging
- ›The henry is named after Joseph Henry who independently discovered electromagnetic induction in 1832