Home › Math & Science Calculators › Ohm's Law
⚡ Math & Science Calculators
Ohm's Law Calculator
Solve for any electrical variable using Ohm's Law. Enter any two of the four values — Voltage (V), Current (I), Resistance (R), or Power (P) — to calculate the remaining two.
Frequently asked questions
What is Ohm's Law?
Ohm's Law states that V = I × R. Power is P = V × I.
Related tools