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Milliohm to Ohm Converter

1 milliohm is exactly 0.001 ohms. Convert milliohms (mΩ) to ohms (Ω) below: type a value and the result updates as you type.

mΩ to Ω calculator

Dot or comma decimals and scientific notation (1e-3) work.

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Result

Milliohm to Ohm conversion

1 mΩ = 0.001 Ωone milliohm in ohms

1 Ω = 1000 mΩone ohm in milliohms

Milliohm (mΩ): One thousandth of an ohm. Used for batteries, cables and shunts.

Ohm (Ω): SI unit of electric resistance: one volt per ampere.

Source:SI Brochure, 9th edition (BIPM, 2019)

How to convert milliohms to ohms

To convert milliohms to ohms, multiply the number of milliohms by 0.001.

Formula

Ω = mΩ × 0.001

Examples

  • 5 mΩ = 5 × 0.001 = 0.005 Ω
  • 25 mΩ = 25 × 0.001 = 0.025 Ω
  • 100 mΩ = 100 × 0.001 = 0.1 Ω

Milliohm to Ohm conversion table

Milliohm to Ohm
Milliohm (mΩ)Ohm (Ω)
0.1 mΩ0.0001 Ω
0.5 mΩ0.0005 Ω
1 mΩ0.001 Ω
2 mΩ0.002 Ω
3 mΩ0.003 Ω
5 mΩ0.005 Ω
10 mΩ0.01 Ω
20 mΩ0.02 Ω
25 mΩ0.025 Ω
50 mΩ0.05 Ω
100 mΩ0.1 Ω
250 mΩ0.25 Ω
500 mΩ0.5 Ω
1000 mΩ1 Ω

Values rounded to 10 significant digits where needed.

Frequently asked questions

How many ohms are in one milliohm?
One milliohm is exactly 0.001 ohms.
How do I convert ohms to milliohms?
To convert ohms to milliohms, multiply the number of ohms by 1000. The formula is mΩ = Ω × 1000.
Is this conversion exact?
Yes. Both units have exact definitions and the factor 0.001 is exact. Displayed results are only rounded when they have many decimal places.
Which is larger, a milliohm or a ohm?
A ohm is 1000 times larger than a milliohm. In other words, a milliohm is exactly 1/1000 of a ohm.