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.




249+ iOS apps curated and reviewed
Looking for free kva calculator apps? 18 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.4★ (12) | Yes | No | Oct 2026 | ||
| 2 | $1.99 | 4.0★ (1) | No | No | Oct 2026 | ||
| 3 | Free | 4.8★ (49) | Yes | Yes | Oct 2026 | ||
| 4 | Free | 4.6★ (579) | No | Yes | Oct 2026 | ||
| 5 | Free | — | No | Yes | Oct 2026 | ||
| 6 | Free | 4.5★ (2) | No | No | Oct 2026 | ||
| 7 | $2.99 | 3.0★ (1) | No | No | May 2026 | ||
| 8 | Free | 4.9★ (410K) | Yes | No | Oct 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.






Easily calculate and convert electrical power in KVA, kW, and kVAR. This tool is designed for electricians, engineers, and students to understand electrical power systems with a user-friendly interface and support for various units.






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.