This calculator is very useful for converting watts to amps with easily and quickly.
How to use this calculator first choose Select current type (DC = Direct Current, AC = Alternating Current Single Phase / Three Phase), then fill the Power in Watts, voltage and other values, then press the Calculate button to get the current result in Amps.
How to Calculate Watts to Amps?
DC = Direct Current
DC (W) to (A) calculation
| Formula I(A) | = | P(W) |
| V(V) |
Current I in amps (A) equals to P in watts (W), divided by voltage V in volts.
AC = Alternating Current
AC single phase (W) to (A) calculation
| Formula I(A) | = | P(W) |
| (PF x V(V)) |
AC three phase (W) to (A) calculation
Line to line voltage
| Formula I(A) | = | P(W) |
| (√3 × PF × VL-L(V) ) |
Line to neutral voltage
| Formula I(A) | = | P(W) |
| (3 × PF × VL-N(V) ) |
power factor of resistive impedance load is equal to 1
