Ohm's Law Calculator

vCalc Reviewed
Calculator / Last modified by KurtHeckman on 2017/08/01 17:04
`V=I*R` `V=P/I` `V=sqrt(P * R)`
`I=P/V` `I=sqrt(P/R)` `I=V/R`
`R=P/I^2` `R=V/I` `R=V^2/P`
`P=I*V` `P=R*I^2` `P=V^2/R`

The Ohm's Law Calculator computes power(watts), Ohls-illustration.pngpotential (volts), resistance (ohms) and current (amps) based on the three variants of Ohm's Law.  The calculator has automatic unit conversions of inputs and outputs.

Power: (watts, milliwatts, kilowatts, horsepower)

Potential: (volts, millivolts)V=IR.png

Resistance: (ohms, milliohms, kiloohms)

Current: (amps, milliamps, microamps, gilberts)

General Information

Ohm's Law states that the electric current through an electric conductor between two points is directly proportional to the potential difference (voltage) across the two points.  As an equation this is simply I = V/R.

Ohm's Law established relations between potential (voltage), current, resistance and power.  See wheel graphic.

The law was named after the German physicist Georg Ohm.


[1] Ohm's Law
Source: Wikipedia
URL: http://en.wikipedia.org/wiki/Ohm%27s_law
Public License:  CC Attribution-ShareAlike 4.0 International