⚡ Ohm's Law Calculator
⚡ Ohm's Law Calculator
Instant voltage, current, resistance, and power calculations.
V
Electrical potential difference
A
Flow of electric charge
Ω
Opposition to current flow
W
Rate of energy transfer
Common Circuit Examples:
Calculation Results
Voltage
–
Volts
Current
–
Amps
Resistance
–
Ohms
Power
–
Watts
⚠️ Educational Use Only: This calculator provides theoretical values.
Always consult a qualified electrician for real-world electrical work and follow local codes.