Milliohms to Ohms Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert milliohms to ohms, multiply by 0.001. For example, 10 mΩ is 0.01 Ω. One milliohm equals 0.001 Ω.

Use the Milliohms to Ohms Converter

Milliohms to Ohms formula and what each symbol means

Ω = mΩ × 0.001

Symbols used in the formula
SymbolMeaning
mΩMilliohm
ΩOhm

Milliohms to Ohms examples

1 mΩ

1 mΩ × 0.001 = 0.001 Ω.

10 mΩ

10 mΩ × 0.001 = 0.01 Ω.

100 mΩ

100 mΩ × 0.001 = 0.1 Ω.

Milliohms compared with Ohms

One Ω is 1,000 times as large as one mΩ, so your number gets smaller when you convert milliohms to ohms and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.

About milliohms and ohms

Milliohm (mΩ): Milliohm, 0.001 Ω. Ohm (Ω): The ohm, the SI unit of electrical resistance.

How to calculate Milliohms to Ohms step by step

  1. Enter the value in mΩ (the starting unit).
  2. Multiply by 0.001, because 1 mΩ = 0.001 Ω.
  3. The product is the value in Ω. To go back, divide by 0.001 or multiply by 1,000.

Popular electric resistance conversions

How to read your Milliohms to Ohms result

The ohm is the SI unit of electrical resistance.

MILLIOHMSOHMS
10.001
20.002
50.005
100.01
200.02
500.05
1000.1
1,0001

Ohms to Milliohms: quick table

OHMSMILLIOHMS
11,000
55,000
1010,000
2525,000
5050,000
100100,000
250250,000
500500,000

Common mistakes when calculating Milliohms to Ohms

  • Confusing resistance (Ω) with resistivity (Ω·m).
  • Dividing when you should multiply: from mΩ to Ω multiply by 0.001; from Ω to mΩ divide by 0.001.

Milliohms to Ohms FAQ

How many Ω are in 1 mΩ?

1 mΩ equals 0.001 Ω.

How many mΩ are in 1 Ω?

1 Ω equals 1,000 mΩ.

Is 1 mΩ = 0.001 Ω an exact conversion?

The factor is shown rounded to 7 significant figures (0.001). The calculator above uses more digits.

What is a milliohm (mΩ)?

Milliohm, 0.001 Ω.

How can I estimate milliohms to ohms in my head?

One Ω is 1,000 times as large as one mΩ, so your number gets smaller when you convert milliohms to ohms and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.

What is 40 mΩ in ohms?

40 mΩ = 0.04 Ω (since 40 × 0.001).

What is 200 mΩ in ohms?

200 mΩ = 0.2 Ω (since 200 × 0.001).

What is 3 mΩ in ohms?

3 mΩ = 0.003 Ω (since 3 × 0.001).

How many decimals should I keep when converting mΩ to Ω?

Match the precision of your original measurement. For example, 0.01 Ω rounds to 0.01 Ω at 3 significant figures; keep more digits only for engineering or scientific work.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)