Easily calculate and convert electrical values like kVA, kW, Amps, Volts, and Power Factor. Supports both single and three-phase calculations for engineers working with power systems.






245+ iOS apps curated and reviewed
Every iPhone needs a few good kva calculator 2025 apps. We benchmark 245+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $1.99 | — | No | No | May 2026 | ||
| 2 | Free | 4.4★ (11) | Yes | No | Aug 2026 | ||
| 3 | Free | 4.8★ (47) | Yes | Yes | Sep 2026 | ||
| 4 | Free | 4.9★ (409K) | Yes | No | Oct 2026 | ||
| 5 | Free | 4.5★ (2) | No | No | May 2026 | ||
| 6 | Free | 4.4★ (50) | Yes | No | Sep 2026 | ||
| 7 | Free | 4.7★ (252) | Yes | Yes | Sep 2026 | ||
| 8 | Free | 4.4★ (26) | No | No | Sep 2026 |










Easily calculate and convert electrical values like kVA, kW, Amps, Volts, and Power Factor. Supports both single and three-phase calculations for engineers working with power systems.






This app simplifies transformer calculations for engineers and students. It accurately computes primary and secondary currents, turns ratios, and secondary voltages based on user inputs for transformer ratings and winding turns.