I = P / VNo power factor needed for DC circuits.
Three-Phase AC Tool
Three Phase Power Calculator
Calculate real power or line current in a balanced three-phase AC system using line-to-line voltage and power factor.
Conversion direction
Quick voltage presets
Power factor varies by load. Use the equipment value when available.
Calculated result1000 W · 120 V · DC
8.333 A
Formula used
I = P / VCustom voltage is always supported.
Formulas Used
I = P / (V × PF)Single-phase AC — multiply voltage by power factor.
I = P / (√3 × V × PF)Three-phase AC — divide by √3 ≈ 1.732.
Real power is P = sqrt(3) x V x I x PF. To find current, use I = P / (sqrt(3) x V x PF).
Real power is P = sqrt(3) x V x I x PF. To find current, use I = P / (sqrt(3) x V x PF).
Three-phase examples
Three-phase examples. Use the displayed calculator for a numerical result and check the equipment voltage and power factor before applying it.
Frequently Asked Questions
Which formula should I use?
Real power is P = sqrt(3) x V x I x PF. To find current, use I = P / (sqrt(3) x V x PF).
Can I use this result for equipment sizing?
Use the result as an estimate and verify equipment specifications, code requirements, and manufacturer data before sizing electrical equipment.