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Mhos Conversion

The mho is a unit used to measure electrical conductance. Use one of the conversion calculators below to convert to another unit of measure, or read on to learn more about mhos.

Mho Conversion Calculators

Choose a unit of electrical conductance to convert to.

SI Units
Metre-Kilogram-Second Units
Centimetre–Gram–Second Units

Mho Definition and Usage

The mho is a unit of electrical conductance and is the reciprocal of the resistance in ohms, and is actually ohm spelled backwards. One mho is equal to one siemens, which is the SI derived unit of conductance.

Mhos can be abbreviated as ℧; for example, 1 mho can be written as 1 ℧.

Background and Origin

The mho originated in the late 1800s, when it was suggested for use by Lord Kelvin. According to the National Institute of Standards and Technology, the mho is now an unacceptable unit for use with other SI units and its use should be avoided.[1]

Mhos Measurement Conversion Table

Common mho values and equivalent imperial and metric electrical conductance measurements
mhos siemens microsiemens millisiemens kilosiemens megasiemens micromhos abmhos statmhos
1 ℧ 1 S 1,000,000 μS 1,000 mS 0.001 kS 0.000001 MS 1,000,000 μ℧ 0.000000001 ab℧ 899,000,000,227 st℧
2 ℧ 2 S 2,000,000 μS 2,000 mS 0.002 kS 0.000002 MS 2,000,000 μ℧ 0.000000002 ab℧ 1,798,000,000,453 st℧
3 ℧ 3 S 3,000,000 μS 3,000 mS 0.003 kS 0.000003 MS 3,000,000 μ℧ 0.000000003 ab℧ 2,697,000,000,680 st℧
4 ℧ 4 S 4,000,000 μS 4,000 mS 0.004 kS 0.000004 MS 4,000,000 μ℧ 0.000000004 ab℧ 3,596,000,000,906 st℧
5 ℧ 5 S 5,000,000 μS 5,000 mS 0.005 kS 0.000005 MS 5,000,000 μ℧ 0.000000005 ab℧ 4,495,000,001,133 st℧
6 ℧ 6 S 6,000,000 μS 6,000 mS 0.006 kS 0.000006 MS 6,000,000 μ℧ 0.000000006 ab℧ 5,394,000,001,359 st℧
7 ℧ 7 S 7,000,000 μS 7,000 mS 0.007 kS 0.000007 MS 7,000,000 μ℧ 0.000000007 ab℧ 6,293,000,001,586 st℧
8 ℧ 8 S 8,000,000 μS 8,000 mS 0.008 kS 0.000008 MS 8,000,000 μ℧ 0.000000008 ab℧ 7,192,000,001,812 st℧
9 ℧ 9 S 9,000,000 μS 9,000 mS 0.009 kS 0.000009 MS 9,000,000 μ℧ 0.000000009 ab℧ 8,091,000,002,039 st℧
10 ℧ 10 S 10,000,000 μS 10,000 mS 0.01 kS 0.00001 MS 10,000,000 μ℧ 0.00000001 ab℧ 8,990,000,002,266 st℧
11 ℧ 11 S 11,000,000 μS 11,000 mS 0.011 kS 0.000011 MS 11,000,000 μ℧ 0.000000011 ab℧ 9,889,000,002,492 st℧
12 ℧ 12 S 12,000,000 μS 12,000 mS 0.012 kS 0.000012 MS 12,000,000 μ℧ 0.000000012 ab℧ 10,788,000,002,719 st℧
13 ℧ 13 S 13,000,000 μS 13,000 mS 0.013 kS 0.000013 MS 13,000,000 μ℧ 0.000000013 ab℧ 11,687,000,002,945 st℧
14 ℧ 14 S 14,000,000 μS 14,000 mS 0.014 kS 0.000014 MS 14,000,000 μ℧ 0.000000014 ab℧ 12,586,000,003,172 st℧
15 ℧ 15 S 15,000,000 μS 15,000 mS 0.015 kS 0.000015 MS 15,000,000 μ℧ 0.000000015 ab℧ 13,485,000,003,398 st℧
16 ℧ 16 S 16,000,000 μS 16,000 mS 0.016 kS 0.000016 MS 16,000,000 μ℧ 0.000000016 ab℧ 14,384,000,003,625 st℧
17 ℧ 17 S 17,000,000 μS 17,000 mS 0.017 kS 0.000017 MS 17,000,000 μ℧ 0.000000017 ab℧ 15,283,000,003,851 st℧
18 ℧ 18 S 18,000,000 μS 18,000 mS 0.018 kS 0.000018 MS 18,000,000 μ℧ 0.000000018 ab℧ 16,182,000,004,078 st℧
19 ℧ 19 S 19,000,000 μS 19,000 mS 0.019 kS 0.000019 MS 19,000,000 μ℧ 0.000000019 ab℧ 17,081,000,004,304 st℧
20 ℧ 20 S 20,000,000 μS 20,000 mS 0.02 kS 0.00002 MS 20,000,000 μ℧ 0.00000002 ab℧ 17,980,000,004,531 st℧

You might also find our other electrical calculators useful.

References

  1. National Institute of Standards and Technology, NIST Guide to the SI, Chapter 5: Units Outside the SI, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-5-units-outside-si
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SI Units
Metre-Kilogram-Second Units
Centimetre–Gram–Second Units

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