Power & current / FORMULA-BASED TOOL
Watts to amps calculator
Convert electrical input power to current, with an explicit supply type.
02The working, shownW→A
W→A
Every result has a reason.
Enter your values and calculate to see the result, formula and working here.
I = P ÷ (V × PF)Within this model
DC or sinusoidal steady-state AC; three-phase loads must be balanced. AC voltage and current are RMS values. Three-phase power is total input power and voltage is line-to-line. Use true power factor. No motor output-power, starting-current or protection sizing calculation.
What the numbers mean.
Watts measure real power; amps measure current. For AC, power factor accounts for the relationship between real and apparent power. For balanced three-phase loads, the denominator also includes √3. Enter electrical input power, which differs from a motor’s shaft output.
Formula reference: Schneider Electric · Electrical Installation Guide ↗A worked example
2,300 W ÷ (230 V × 1) = 10 A for single-phase AC.
Validation, precision and limitations