Amps to Watts Calculator

Convert amps to watts at your system voltage.

Current (A)

Power factor

Voltage

Estimates only. Verify with local codes, manufacturer specs, and a qualified installer.

Related calculators

Continue sizing with a related tool.

Convert watts to amps for AC or DC circuits with optional power factor.

Solve for voltage, current, resistance, or power when you know two values.

Find power factor and reactive power from real and apparent power.