The kVA Calc

kVA Calculator

Quick & Easy kVA, kW, PF, Voltage & Current Calculations

kVA Calculator makes electrical power calculations fast, simple, and accurate. Whether you're an electrician, engineer, technician, or student, this app lets you instantly compute kVA, kW, Amps, Volts, or Power Factor using standard single-phase and three-phase formulas.
With support for Single Phase, Three Phase, and kVA | PF | kW conversions, you can enter any two values — the app instantly calculates the third.

Core Calculations Included

Single-Phase Formulas
kVA = (V × A) ÷ 1000
Amps = (kVA × 1000) ÷ V
Volts = (kVA × 1000) ÷ A
Three-Phase Formulas
kVA = (√3 × V × A) ÷ 1000
Amps = (kVA × 1000) ÷ (√3 × V)
Volts = (kVA × 1000) ÷ (√3 × A)
kVA | PF | kW Conversions
PF = kW ÷ kVA
kW = kVA × PF
kVA = kW ÷ PF

Features

• Instant Calculations
Quickly compute kVA, kW, amps, volts, or power factor using accurate industry-standard formulas.

• Single & Three-Phase Support
Switch instantly between 1-phase, 3-phase, or PF/kW/kVA modes.

• Simple, Intuitive Interface
Designed for field work, classrooms, job sites, and engineering environments — optimized for clarity and speed.

• Works Offline
No internet connection needed — calculate anytime, anywhere.

• Lightweight & Efficient
Fast performance with minimal battery and storage usage.

• Optional Ad-Free Upgrade
Remove ads for a clean, uninterrupted experience.

Perfect For
• Electricians
• Engineers & technicians
• Students & educators
• Generator & UPS professionals
• Industrial maintenance & HVAC
• Solar, EV, and renewable energy installers
• Anyone learning or working with AC electrical systems