Ohm's Law Calculator
Enter any two of V, I, and R on Jenzzy to find the third for basic circuit analysis.
Inputs
Results
Enter values to see results.
Formula
V = I ร R; I = V/R; R = V/I
Power P = V ร I extends analysis when needed.
Example
- Current: 12 / 4 = 3 A= 3 A
Result: Current = 3 amperes
Frequently Asked Questions
AC circuits?
Use impedance for AC; Ohm's law applies to resistive loads.
Units?
Volts, amperes, ohms must be base SI units.
Power?
Multiply V and I for watts.