What is the base SI unit for inductance?

The primary reference unit for inductance in this converter is the Henry (H). All 4 supported inductance units are anchored to this standard.

Are these inductance conversion factors verified?

Yes, all inductance conversion constants on UnitConvertersGo are verified against NIST Special Publication 811 and ISO/IEC 80000 international metrology standards.

Inductance Converter

Enter a value below to convert between metric, imperial, and standard inductance units.

Convert Inductance

Enter a value and select the units to convert between millihenries, microhenries, and henries.

Instant conversion

Value

From

Result

0.01 H

10 mH = 0.01 H

10 mH = 10,000 µH = 0.01 HGet Widget

You can change the units using the dropdowns above or click on a unit button.

Suggested Conversions

Common Inductance Reference Points

Here are some common inductance values in Millihenry (mH), Microhenry (µH), and Henry (H). Click any preset value or arrow to load it into the converter.

Description	Millihenry (mH)	Microhenry (µH)	Henry (H)
Buck converter power inductor (0.01 mH / 10 µH)	0.01	10	0.00001
EMI filter choke (0.1 mH / 100 µH)	0.1	100	0.0001
1 Millihenry benchmark (1,000 µH)	1	1,000	0.001
Speaker crossover coil (5 mH)	5	5,000	0.005
1 Henry large filter choke (1,000 mH)	1,000	1,000,000	1

Inductance Conversion Formulas

Use the following formulas to convert between millihenries, microhenries, and henries.

mH to Microhenries

µH = mH × 1,000

mH to Henries

H = mH ÷ 1,000

µH to Nanohenries

nH = µH × 1,000

Example: Convert 4.7 Millihenries (mH) to Microhenries (µH)

µH = 4.7 × 1,000

µH = 4,700 µH

1 Henry (H) equals 1,000 millihenries (mH), 1,000,000 microhenries (µH), or 10⁹ nanohenries (nH).

More Millihenry & Henry Conversions

Convert from Millihenries

Convert to Henries

Frequently Asked Questions

1 millihenry (mH) equals 0.001 henries (H). Multiply your millihenry value by 0.001 or enter it in the Inductance Converter above for instant calculation.

Inductance Converter

Quick Info

Henry (H) is the coherent SI unit of electrical inductance (1 Weber per Ampere).
Millihenry (mH = 10⁻³ H) is used for audio crossovers, power chokes, and relay solenoids.
Microhenry (µH = 10⁻⁶ H) is the standard range for DC-DC switching regulator inductors.
Nanohenry (nH = 10⁻⁹ H): Used in RF/microwave circuits and high-speed PCB trace parasitic modeling.

Inductance Units Comparison

Millihenry (mH)

Equal to 0.001 Henry or 1,000 microhenries.

Microhenry (µH)

Equal to 10⁻⁶ Henry or 1,000 nanohenries.

Henry (H)

Coherent SI unit of electromagnetic inductance.

References

[1]NIST CUU · Derived SI Unit: Henry (H)
Source
[2]BIPM · SI Brochure (9th Ed.) — Inductance
Source
[3]BIPM Prefixes · SI Submultiples (mH, µH, nH)
Source

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All Inductance Conversion Calculators (4)

Select any dedicated inductance pair below for worked examples and printable tables

Millihenries to Henries (mH to H)Henries to Millihenries (H to mH)Microhenries to Millihenries (µH to mH)Microhenries to Henries (µH to H)

Category Conversion Matrix

Simultaneous comparison of 4 units in this category

Henry (H)

Millihenry (mH)

1,000

Microhenry (µH)

1,000,000

Nanohenry (nH)

1,000,000,000

Inductance Unit Definitions & Symbols

Henry (H)

SI unit of electrical inductance.

Millihenry (mH)

METRIC

One-thousandth of a Henry (0.001 H).

Microhenry (µH)

METRIC

One-millionth of a Henry (10⁻⁶ H).

Nanohenry (nH)

METRIC

One-billionth of a Henry (10⁻⁹ H).

References

NIST · BIPM · ISO

[1]
NIST CUU (Derived SI Unit: Henry (H))·Inductance Metrology Standards — Henry (H), Millihenry (mH) & Microhenry (µH)
NIST CUU Standard
[2]
BIPM (SI Brochure (9th Ed.) — Inductance)·International Reference Specification for Electrical Inductance
BIPM Reference
[3]
BIPM Prefixes (SI Submultiples (mH, µH, nH))·Official Inductance Conversion Factors & Rounding Rules
BIPM Prefixes Tables

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