Ohm's Law Calculator

This calculator uses Ohm's law and the power law given any two of the following quantities:

The voltage across a resistor
The current flowing through a resistor
The resistance of the resistor
The power delivered to the resistor

this tool will compute the other two.

Input

Output

Unit1 Error

Equations Used

V = I R	I = V / R	R = V / I	P = I V
V = P / I	I = P / V	R = P / I²	P = I² R
V = √(P R)	I = √(P / R)	R = V² / P	P = V² / R