acwattage
Free calculate power in watts from voltage and current. power is the rate at which electrical energy is transferred.
Input Parameters
Results
Enter voltage and current to calculate power
Power Formula
Power Equation
P = V × I
Where P = power (watts), V = voltage (volts), I = current (amperes)
Alternative Formulas
- • P = I² × R (using resistance)
- • P = V² / R (using resistance)
- • P = E / t (energy over time)