Ohm's Law & Calculator

Ohm's Law relates the three fundamental electrical quantities: voltage, current and resistance. Power relationships are also given.

Click here for a much more extensive treatment of Ohm's Law.


V = I · R	I = V R	R = V I
P = I · V	P = I² R	P = V² R
I = Current (A) P = Power (W) R = Resistance (Ω) V = Voltage (V)

Ohm's Law Calculator Please click the Calculate Button for results

I=	A	V =	V
R=	Ω	P =	W

V=	V	I =	A
R=	Ω	P =	W

V=	V	R =	Ω
I=	A	P =	W

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