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Inductance Converter

Convert inductance units like henry, millihenry, microhenry.

Convert Units

From:

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Result:

Convert inductance measurements between different units including henry, millihenry, microhenry, nanohenry, and more.

What is Inductance Converter?

Inductance is a coil's property to oppose changes in current by storing energy in a magnetic field. When current changes, the inductor generates a voltage resisting that change (Lenz's Law). Inductors are used in power supplies, radio filters, and transformers.

Understanding the Units

Henry (H)

The SI derived unit of inductance. A one-henry inductor generates 1 V when current changes at 1 A/s.

Common Uses: Power transformers, large chokes, laboratory equipment

Millihenry (mH)

One-thousandth of a henry.

Common Uses: Audio crossover filters, switching power supply chokes

Conversion: 1 H = 1,000 mH

Microhenry (µH)

One-millionth of a henry.

Common Uses: RF circuits, DC-DC converters, EMI filters

Conversion: 1 mH = 1,000 µH

Common Conversions

Small RF inductor: 1–100 µH
Audio crossover inductor: 1–10 mH
Switching power supply choke: 10 µH to 10 mH
Mains transformer primary: 1–10 H

Conversion Formulas

Induced voltage: V = L × (dI/dt) — voltage proportional to rate of current change
Energy stored: E = ½ × L × I²
Resonant frequency: f = 1 ÷ (2π × √(L × C))
H to mH: mH = H × 1,000
mH to µH: µH = mH × 1,000

Practical Examples

Wi-Fi antenna matching network uses pico-henry inductors at 2.4 GHz

Power supply choke (100 µH): smooths output ripple in a DC-DC converter

Speaker crossover (2 mH): routes low frequencies to the woofer

Mains transformer iron-core: inductance in henries handles 50/60 Hz power

When to Use Each Unit

Microhenry (µH): RF circuits, high-frequency power supplies, EMI suppression

Millihenry (mH): Audio filters, power chokes, switching converters

Henry (H): Power transformers, large inductive loads, scientific work

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