## Amps to watts calculator

Electric current in amps (A) to electric power in watts (W) calculator.

Select current type, enter current in amps, voltage in volts, power factor for AC circuit and press the

Calculatebutton (DC = Direct Current, AC = Alternating Current):* Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12

## DC amps to watts calculation

The power

Pin watts (W) is equal to the currentIin amps (A), times the voltageVin volts (V):

P_{(W)}=I_{(A)}×V_{(V)}## AC single phase amps to watts calculation

The power

Pin watts (W) is equal to the power factorPFtimes the phase currentIin amps (A), times the RMS voltageVin volts (V):

P_{(W)}=PF×I_{(A)}×V_{(V)}## AC three phase amps to watts calculation

## Calculation with line to line voltage

The power

Pin watts (W) is equal to square root of 3 times the power factorFPtimes the phase currentIin amps (A), times the line to line RMS voltageV_{L-L}in volts (V):

P_{(W)}=√3 ×PF×I_{(A)}×V_{L-L(V)}## Calculation with line to neutral voltage

The power

Pin watts (W) is equal to 3 times the power factorFPtimes the phase currentIin amps (A), times the line to neutral RMS voltageV_{L-N}in volts (V):

P_{(W)}= 3 ×PF×I_{(A)}×V_{L-N(V)}

## See also