# Watts to Amps calculator

Enter the power in watts (W), voltage in volts (V), select power factor (PF) from 0 to 1 with a 0.1 step (for AC), then press the Calculate button to get the result in amps (A).

## DC watts to amps calculation

Power in watts (W)
Voltage in volts (V)

I(A) = P(W) / V(V)

The current I in amps (A) is equal to the power P in watts (W), divided by the voltage V in volts (V).

## AC single phase watts to amps calculation

Power in watts (W)
Voltage in volts (V)
Power factor (PF)

I(A) = P(W) / (PF × V(V))

The phase current I in amps (A) is equal to the power P in watts (W), divided by the power factor PF, multiplied by the RMS voltage V in volts (V).

## AC three phase watts to amps calculation

### Line to line voltage

Power in watts (W)
Voltage in volts (V)
Power factor (PF)

I(A) = P(W) / (√3 × PF × VL-L(V))

The phase current I in amps (A) is equal to the power P in watts (W), divided by square root of 3, multiplied by the power factor PF, multiplied by the line to line RMS voltage VVL-L in volts (V).

### Line to neutral voltage

Power in watts (W)
Voltage in volts (V)
Power factor (PF)

I(A) = P(W) / (3 × PF × VL-N(V))

The phase current I in amps (A) is equal to the power P in watts (W), divided by 3, multiplied by the power factor PF, multiplied by the line to neutral RMS voltage VVL-N in volts (V).