Ohm (Ω)

Ohm (symbol Ω) is the electrical unit of resistance.

The Ohm unit was named after George Simon Ohm.

1Ω = 1V / 1A = 1J ⋅ 1s / 1C2


Table of resistance values of Ohm

name symbol conversion example
milli-ohm 1mΩ = 10-3Ω R0 = 10mΩ
ohm Ω


R1 = 10Ω
kilo-ohm 1kΩ = 103Ω R2 = 2kΩ
mega-ohm 1MΩ = 106Ω R3 = 5MΩ



Ohmmeter is a measurement device that measures resistance.


See also

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