Three-Phase Power Calculator (kW, kVA, PF)

Calculate three-phase apparent power (kVA) and real power (kW/W) using √3 × V × I, with optional power factor for HVAC commercial service work.

This calculator is part of the HVACTools.pro free calculator collection, built for working HVAC technicians. The interactive widget loads when the page hydrates; the content below previews related tools while it loads.

Browse all HVAC calculators · Troubleshooting workflows · HVAC guides · Tool reviews