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Millihenry Converters

Convert millihenries to henries, microhenries, nanohenries and other inductance units for coils and inductors.

What this tool does

Convert millihenries to henries, microhenries, nanohenries and other inductance units for coils and inductors. Type an amount in millihenries, choose the units, and the tool converts it to henries. It offers 11 inductance units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one from 11 options, including Terahenry, Gigahenry, Megahenry, Kilohenry, Henry, Millihenry. Starts as Millihenry.
  • To: Choose one of the same 11 units as "From". Starts as Henry.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from millihenries to henries:

  • 1 mH = 0.001 H
  • 5 mH = 0.005 H
  • 10 mH = 0.01 H
  • 50 mH = 0.05 H
  • 100 mH = 0.1 H

Multiply the number of millihenries by 0.001 to get henries. Both units are exact definitions, so 0.001 is the exact factor: 1 mH = 0.001 H.

Sources: Millihenry: SI Brochure, 9th edition (2019, updated 2022), Table 7 (SI prefixes). Henry: SI Brochure, 9th edition (2019).

Limitations

  • Converts the unit of an inductance only. It does not work out inductance from coil turns, core or geometry, and it does not combine inductors in series or parallel.
  • Abhenry and stathenry are historical CGS units, listed for completeness.

FAQs

Q: How many henries is one millihenry?
A: One millihenry is 0.001 henry (one thousandth of a henry). Pick millihenry as the From unit and henry as the To unit to see it for any value.
Q: How many microhenries is one millihenry?
A: One millihenry is 1,000 microhenries and 1,000,000 nanohenries.
Q: Can I convert from henries to millihenries?
A: Yes. Choose henry in the From box and millihenry in the To box.

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