# Electrical Calculations — Cable sizing & capacity

> Professional electrical calculation software with reporting and extensive resources. (iPhone/iPad app by Egal Net di Ettore Gallina.)

- Source: https://appshunter.io/ios/app/electrical-calculations/id993232048 (this page in markdown: same URL + `.md`)
- Developer: [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047)
- Category: Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 126 App Store ratings · 308 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 56 MB
- Languages: Russian, Afrikaans, Albanian, Azerbaijani, Bangla, Bosnian, Bulgarian, Burmese, Khmer, Hindi and 42 more
- Released: 2015-06-06
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews.md

## What is Electrical Calculations?

Electrical Calculations is the PROFESSIONAL app for those who work with electrical systems every day: design, size and verify in just seconds, from the job site or the office. Over 200 calculations, diagrams, formulas and tables in a single app, with clear, printable PDF reports to attach to your documents.

Designed for electricians, installers, designers and surveyors, it saves you time and helps you avoid mistakes: from cable sizing to short circuit.

COMPLIANT WITH STANDARDS
Reliable results aligned with the main standards: IEC (International Electrotechnical Commission), CEI (Italian Electrotechnical Committee), NEC (National Electrical Code), CEC (Canadian Electrical Code).

WHY CHOOSE IT
SAVE TIME: the calculations you'd do by hand, instantly available here.
AVOID ERRORS: verified formulas and up-to-date regulatory parameters.
PROFESSIONAL REPORTS: PDF reports ready for printing and archiving.
ALWAYS WITH YOU: over 200 tools including calculations, converters, tables and pinouts.


THE MOST USED CALCULATIONS
Cable sizing and coordination with the protective device, voltage drop, operating current, current intensity, voltage and power (active, reactive, apparent). Power factor and power factor correction. Current capacity of conductors and busbars, sizing of conduits and trunking, maximum cable length.

SHORT CIRCUIT AND PROTECTION
Short-circuit current at a point on the line, earthing system and coordination with the residual current device, cable protection against short circuit (K²S²), power loss, cable temperature, neutral current.

ELECTRIC MOTOR
Motor current, power, voltage, efficiency and power factor, slip, speed, maximum torque and full-load current. Three-phase motor connection diagrams, terminal markings. Three-phase to single-phase.

ELECTRONICS
Color and alphanumeric codes for resistors, capacitors and inductors, SMD code, LED resistor, voltage and current divider, Zener diode, battery life, resonant frequency, fuses and transformers.

CONVERSIONS
Delta-star, AWG, SWG, cross-section, length, energy, temperature, pressure, Ah/kWh, var/µF, Gauss/Tesla, RPM and many more.

RESOURCES AND TABLES
Tripping curves, cable reactance and resistivity, cable dimensions and weight, distribution systems (TT, TN, IT), IP/IK/NEMA protection ratings, ATEX marking, insulation classes, electrical symbols, ANSI device codes, plugs and sockets, IEC 60309, NEMA and EV charging connectors, SI prefixes and units of measurement, thermistors and thermocouples.

PINOUTS
Ethernet RJ-45, Ethernet with PoE, USB, HDMI, VGA, DVI, RS-232, FireWire, SATA, DisplayPort, Apple Lightning, Raspberry Pi, OBD II, XLR audio/DMX, MIDI, Jack, RCA, Thunderbolt, SD Card, SIM Card and LED.


Stop searching everywhere for formulas and tables: PUT YOUR ENTIRE ELECTRICAL LAB IN YOUR SMARTPHONE. Download Electrical Calculations and work faster, with standards-compliant results.



Terms of service (EULA): https://www.egalnetsoftwares.com/terms_of_service_app/

## Key features

- Wire size and voltage drop calculations
- Power, current, and resistance calculations
- Motor performance and connection diagrams
- Electronic component calculations
- Extensive unit conversions
- PDF report generation
- Support for IEC, CEI, NEC, CEC standards

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| PRO Version (1 year) | $7.49 | per year |
| PRO Version (3 months) | $3.99 | per 3 months |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PRO Version (Lifetime) | $89.99 | one-time |


## Recent user reviews (10 of 308)

All indexed reviews: https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews.md

### 1/5 — Reklám!!!

*2026-06-06, version 9.0.8*

Hiába van előfizetve a pro verzióra akkor is ad reklámot. Ráadásul teli képernyőset. Even if you subscribe to the pro version, it still shows ads. Plus, it's full screen.

### 4/5 — App lỗi

*2026-05-22, version 9.0.8*

Bị sai mã kết quả khi tra bảng mã màu điện trở (5 dải màu)

### 5/5 — Très utile

*2026-04-08, version 9.0.5*

Très bonne application

### 5/5 — Hodnoceni

*2026-04-02, version 9.0.5*

Parádní

### 5/5 — My

*2026-03-29*

Genial!!

**Developer response:** Hello, thank you so much for your comment and review.

### 5/5 — Исправили запуск

*2026-03-29*

Починили запуск приложения🙏👍

**Developer response:** Здравствуйте, большое спасибо за ваш комментарий и отзыв.

### 5/5 — Prodotto top e supporto anche di piu :-)

*2026-03-24, version 9.0.5*

Indispensabile strumento, completo e di facile utilizzo. Anche per i non- professionisti come me che vogliono verificare che il loro impianto sia stato dimensionato correttamente. Ulteriore nota di merito per il supporto ricevuto in tempi rapidi direttamente dallo sviluppatore.

### 3/5 — Problème avec l’ancienne version

*2026-03-10, version 9.0.5*

Bonjour, je m’adresse a vous ici pour exprimer mon problème avec la version pro de l’ancienne application, j’ai acheté la version pro licence à vie, mais maintenant l’application ne s’ouvre plus, elle reste sur le premier Ecran sans succès.

### 5/5 — تطبيق رائع جدا

*2026-03-04, version 9.0.5*

اشكر القائمين على التطبيق ودعمهم للغة العربية وتوضيح كل فئه من الحسابات

### 4/5 — Migliorabile

*2026-02-21, version 9.0.4*

Ottima e utile app da tenere sempre a portata di mano. Grafica migliorabile.
La cosa davvero antipatica è la mania (oramai diventata moda della maggior parte delle applicazioni) di far pagare gli "extra" in abbonamento senza dare la possibilità di acquisto una tantum.
Personalmente sono stanco degli abbonamenti ancorché di piccoli importi.
Speriamo in future versioni.

## Frequently asked questions about Electrical Calculations

### What kind of calculations does this app offer?

The app offers a wide range of calculations for electrical systems, including wire sizing, voltage drop, current carrying capacity, power calculations, circuit breaker sizing, and short circuit current. It also includes electronic calculations for resistors, fuses, and circuit dividers, as well as motor-related calculations and numerous unit conversions.

### What electrical standards does the app support?

The application supports several key international electrical standards, including those from the International Electrotechnical Commission (IEC), the Comitato Elettrotecnico Italiano (CEI), the National Electrical Code (NEC), and the Canadian Electrical Code (CEC).

### Can I generate reports with this app?

Yes, the application is capable of generating clear and informative reports for your electrical calculations. These reports can be produced in PDF format, making them easy to share and print for documentation or client presentations.

### Is this app free to use?

The app is available for free download and use, but it offers in-app purchases. This means that while core functionalities may be accessible, certain advanced features or additional content might require a purchase to unlock.

### Who would benefit most from using this app?

This app is designed for professionals working in the electrical field, such as installers, designers, and electricians. It serves as a versatile and reliable tool to assist them with complex calculations, ensuring accuracy and efficiency in their work.

## Version history (last 5 releases)

### 9.1.2 — 2026-08-24

* Mod: Improved license management
* Fix: Conduit filling ignored in "Conduit and cable tray sizing IEC/CEI"
* Mod: Improved some translations
* Fix: Focus does not select cell

### 9.1.1 — 2026-07-20

* Mod: Updated images of sockets around the world
* Mod: Improved chatbot support and moved to a more visible position

### 9.1.0 — 2026-07-05

* Mod: Native ads instead of interstitials
* Mod: Improved some results layouts
* Mod: Thorough review of translations
* Fix: Flowchart in the dark-themed section calculation formulas
* Fix: Crash in calculating the maximum cable length with AWG/kcmil size
* Fix: Dropdown with RTL languages
* Fix: Main view width with RTL languages
* Fix: Crash when selecting a calculation with an index that is no longer valid
* Fix: L- wire nomenclature (Morocco DC)

### 9.0.8 — 2026-05-07

* ReFix: Crash in some converters
* Fix: Crash in "UL/CSA Fuse Ratings" on iPad

### 9.0.7 — 2026-05-06

* Fix: Crash in some converters

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All apps by Egal Net di Ettore Gallina: https://appshunter.io/developer/993232047

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*