Power Calculator vs kVA Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Power Calculator
This app provides a straightforward calculator designed for the electrical industry, offering tools for power and lighting calculations. It helps users determine generator and UPS requirements, convert units, and calculate fuel consumption. Suitable for both professionals and casual users needing electrical calculations.
- KW, kVA, and Amps calculation
- Generator requirements calculation (single/three phase)
- UPS requirements calculation (single/three phase)
- Lumens and Watts conversion
- Generator fuel consumption calculation
- Generator power calculation
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A simple no fuss calculator for electrical industry professionals & casual users alike. Incorporates a range of electrical power & lighting calculators: • KW and kVA and Amps • Calculate generator requirements (single or three phase) • Calculate UPS requirements (single or three phase) • Convert Lumens & Watts • Generator Fuel Consumption • Generator Power Calculator
kVA Calculator
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.
- Calculate kVA, kW, Amps, Volts, Power Factor
- Single Phase Calculations
- Three Phase Calculations
- Convert between electrical units
- Intuitive input for two values to find the third
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This kVA Calculator is the essential electrical calculator for electricians and engineers. Quickly convert or calculate kVA, kW and Power Factor or kVA, Volts and Amps — no more manual formula lookups. Perfect for converting kVA to Amps, or kW to KVA when sizing generators or UPS systems. Includes Single Phase and Three Phase, kW and kVA electrical calculations. Enter any two values to calculate the third. kVA Single Phase (1-Phase) Calculations: - Calculate kVA. - Calculate Volts. - Calculate Amps. kVA Three Phase (3-Phase) Calculations: - Calculate kVA. - Calculate Volts. - Calculate Amps. kVA, Power Factor & kW Calculations: - Calculate kVA. - Calculate Power Factor. - Calculate kW. Electrical units are measured in the following: Current (I) = Amps. Power (P) = Watts (or kW). Volts (V) = Voltage. Supports dark mode and 16 languages. Simple, fast, and accurate — the kVA calculator you'll reach for every day. Trusted by the professionals since 2011.
Screenshots
Verdict
Power Calculator and kVA Calculator both sit at 4.5 stars, but that hides the real split: 81% of Power Calculator's written reviews are positive against 42% of kVA Calculator's. Power Calculator also leads on ads (none vs shown) and update cadence (every 2 months vs every 6 months). kVA Calculator's advantage is ratings volume (12 vs 2) and iOS requirement (15.0 vs 17.6). On price, rating, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.5 for Power Calculator against 4.4 for kVA Calculator. That said, the two scores are not equally well evidenced: kVA Calculator has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 81% of Power Calculator's written reviews are positive against 42% of kVA Calculator's.
Power Calculator ships an update every 2 months, kVA Calculator every 6 months. Both last shipped on November 6, 2026.
| Parameter | Power Calculator | kVA Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 4.4 (12 ratings) |
| Positive reviews | 81.0% of reviews — better | 41.7% of reviews |
| Number of ratings | 2 | 12 — better |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Power Continuity Limited | Pro Certs Software Ltd |
Customer experience
Power Calculator
kVA Calculator
In-app purchases
Power Calculator
No in-app purchases
kVA Calculator
No in-app purchases
Questions
Is Power Calculator free?
Is kVA Calculator free?
Which has better reviews, Power Calculator or kVA Calculator?
Do Power Calculator or kVA Calculator have ads?
Which is updated more often, Power Calculator or kVA Calculator?
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