Electrical
Ohm's Law Calculator
Calculate voltage, current, or resistance using V = I × R
Volts
Amperes
Ohms (Ω)
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Ohm's Law Formulas
V = I × R
Solve for Voltage
I = V ÷ R
Solve for Current
R = V ÷ I
Solve for Resistance
What is Ohm's Law?
Ohm's Law states that the current through a conductor is directly proportional to the voltage and inversely proportional to the resistance.
- • V — Voltage in Volts (V)
- • I — Current in Amperes (A)
- • R — Resistance in Ohms (Ω)
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