kVA Calculator vs Voltage Drop Calculator.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Voltage Drop Calculator.
Calculate voltage drop and wire size using both NEC and IEC standards. Supports various load types, conductor materials, and system configurations. Generates detailed reports for electricians, engineers, and contractors.
- NEC and IEC dual standards
- Voltage drop and wire sizing calculations
- Support for continuous load and corrections
- Copper or Aluminum conductor options
- Single-phase and three-phase systems
- Automatic compliance checks
- PDF report generation
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Perform accurate Voltage Drop and Wire Sizing calculations for both NEC® (National Electrical Code) and IEC standards. Built for electricians, engineers, and contractors who need reliable results on the go. Voltage Drop Calculator • Dual standards: Switch between NEC (AWG/Imperial) and IEC (mm²/Metric) • Enter voltage, current, run length, and power factor • Supports continuous load (125%), grouping, and ambient temperature corrections • Copper or Aluminum conductors for single-phase and three-phase systems • Detailed results including ampacity, derating, voltage drop, and load voltage • Automatic compliance checks (e.g., ≤ 3% for branch circuits) Wire Size Calculator (Reverse) • Calculates required wire size for a target voltage drop % • Suggests optimal AWG, kcmil, or mm² • Uses NEC Chapter 9, Table 9 (AC impedance) with DC fallback Professional Tools • Wire converter (AWG/kcmil ↔ mm²) • Generate and share PDF reports • Handy electrical formula cards • Localized in English, Spanish, French, German, Italian, Dutch, Portuguese, and Chinese
Screenshots
Verdict
The clearest difference is in-app purchases: kVA Calculator at none against Voltage Drop Calculator.'s 1. kVA Calculator also leads on review sentiment (42% vs 33%) and iOS requirement (15.0 vs 17.6). Voltage Drop Calculator.'s advantage is ratings volume (414 vs 12) and update cadence (every 3 months vs every 6 months). On price, rating, ads 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. Voltage Drop Calculator. sells 1 one-off in-app purchase. kVA Calculator asks for nothing beyond the download.
Voltage Drop Calculator. holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Voltage Drop Calculator. has 414 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 42% of kVA Calculator's written reviews are positive against 33% of Voltage Drop Calculator.'s, so the app with the better star average is not the one people write more warmly about.
kVA Calculator ships an update every 6 months, Voltage Drop Calculator. every 3 months. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.
| Parameter | kVA Calculator | Voltage Drop Calculator. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (12 ratings) | 4.6 (414 ratings) — better |
| Positive reviews | 41.7% of reviews — better | 33.3% of reviews |
| Number of ratings | 12 | 414 — better |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 10 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Pro Certs Software Ltd | V PUGAZHENTHI |
Customer experience
kVA Calculator
Voltage Drop Calculator.
In-app purchases
kVA Calculator
No in-app purchases
Voltage Drop Calculator.
- Go Pro$4.99
Questions
Is kVA Calculator free?
Is Voltage Drop Calculator. free?
Which has better reviews, kVA Calculator or Voltage Drop Calculator.?
Do kVA Calculator or Voltage Drop Calculator. have ads?
Which is updated more often, kVA Calculator or Voltage Drop Calculator.?
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