Watts to Amps Calculator
Calculate current from active power, voltage, phase mode, and power factor where applicable.
Result
—Formula
I = P ÷ V (DC); I = P ÷ (V × PF) (single-phase); I = P ÷ (√3 × V_LL × PF) (three-phase).
Worked example
For balanced three-phase AC, V is line-to-line voltage and I is line current.
Assumptions
For three-phase calculations, the load is assumed balanced, voltage is line-to-line, and current is line current. Power factor applies to AC active-power calculations.
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Technical disclaimer
This calculator is for numerical estimation only. It does not provide wire, breaker, protection, electrical-code, or installation recommendations.