The VA Calculator is an essential tool for electrical engineers, contractors, and facility managers who need to determine accurate apparent power ratings in electrical systems. This versatile calculator supports both single-phase and three-phase calculations, allowing users to precisely measure Volt-Ampere ratings while accounting for power factor variations. Whether you’re sizing electrical equipment, planning power distribution systems, or conducting energy audits, this tool provides quick and reliable results for your calculations. The calculator’s intuitive interface makes it easy to input values and obtain instant results, helping professionals make informed decisions about electrical system requirements. For businesses looking to optimize their electrical installations or verify equipment specifications, our VA Calculator offers a straightforward solution to complex power calculations. Start using this powerful tool today to ensure accurate electrical system planning and compliance with industry standards.
Use voltage × current for single-phase, √3 × voltage × current for three-phase, then multiply by power factor for real watts. A 208 V, 12.5 A single-phase load equals 2.6 kVA; with 0.92 PF it draws 2.39 kW. U.S. homes run on 120/240 V split-phase, covering 63 % of national dwellings (U.S. EIA, 2023).
