# Electrical Calc

> Professional electrical calculations and code compliance tool for electricians and engineers. (iPhone/iPad app by Snappy Appz Inc..)

- Source: https://appshunter.io/ios/app/electrical-calc/id375591374 (this page in markdown: same URL + `.md`)
- Developer: [Snappy Appz Inc.](https://appshunter.io/developer/375591377)
- Category: Utilities, Productivity
- Price: $19.99
- Rating: 2.50/5 from 2 App Store ratings · 65 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 23 MB
- Languages: American English
- Released: 2010-06-05
- Data updated: 2026-08-27
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/electrical-calc/id375591374/reviews.md

## What is Electrical Calc?

E-Calc Pro is a professional electrical application for calculating many common electrical problems.  This app is an essential tool for all electricians and electrical engineers.  Unlike other similar apps E-Calc not only calculates simple formulas but returns code results including wire sizing, conduit sizing, fusing, overload size, ground and bond size and much more based on the Canadian Electric Code.  The features of this app are too long to list but here are a few of the key ones;

- Basic construction calculator allows you to easily divide rooms for lighting in imperial or metric measurements.

- Calculate any single motor or multiple motor load and get maximum overcurrent, maximum overload, minimum wire, minimum pipe, and minimum bond wire size.  Store a schedule of motors for easy retrieval.

- Calculate any transformer size and get KVA, FLA, pipe size, fuse and breaker size, bond size and ground size, on both primary and secondary.  Easily choke down the transformer and get appropriate results for the modified demand load.

- Calculate feeders for wire size, conduit size and voltage drop simultaneously.

- Create panel legends of any size and easily export or print them right from your device.

- Calculate the allowable ampacity of any wire type and deration situation.

- Calculate maximum number of similar sized wires in a given pipe size.

- Calculate pipe size required for a list of any number, size, and type of wire.

- Calculate required ground and bonding sizes.

- Easily calculate complicated voltage drop calculations.  Get results for percentage voltage drop as well as maximum lengths of runs and wire size.  Derating is also supported.

- Calculate minimum burial depths for any situation including special situations including mechanical protection, under slab, and rock encased.

- Calculate any box fill situation in mL and cubic inch.

- Calculate recommeneded torque settings for all varieties of lugs and terminations.

- Convert many common units.

- Find NEMA codes and specs of receptacles.

- Calculate residential single dwelling service sizes.

- Easily access in app support with quick links to your tablet's email.

## Key features

- Wire and conduit sizing
- Motor and transformer load calculations
- Voltage drop calculations
- Panel legend creation and export
- Allowable ampacity and derating
- Box fill calculations
- Unit conversions

## Recent user reviews (10 of 65)

All indexed reviews: https://appshunter.io/ios/app/electrical-calc/id375591374/reviews.md

### 5/5 — The best Electrical App

*2025-07-05, version 6.0.7*

I’ve been using this app for years. So handy and love that it gets updated with the code book. There is no better Canadian Electrical App on the market. I hope this app remains supported until I retire or else I’m screwed 😂

### 1/5 — Oops

*2024-10-15, version 6.0.7*

My fault, I downloaded the wrong one.  I meant to load master, same price.  Also voltage drop calculator does not seem correct.

### 4/5 — What’s the difference between this and Pro? Should I upgrade?

*2021-03-16, version 6.0.7*

Just would like to know if there’s any reason to upgrade to Pro? They look about the same.

### 5/5 — Best app for electricians

*2018-06-22, version 5.1.16*

Used this app for years on my blackberry and it was beyond useful.  Saved a lot of time on the job and very accurate.

Glad to have found it for the iPhone.

I recommend to anyone looking for a superior electrician's app.

Update: still using this to date... got to make sure you press “done” and clear things before doing the next calculations.

### 3/5 — Great app

*2017-12-17, version 5.1.13*

Pipe fill calculator is difficult to use when using different wire sizes. Some sort of help button would be nice

### 2/5 — need better tutorial

*2017-09-23, version 5.1.9*

having trouble using wire size calculations as well as other calculations

### 4/5 — Great ap... BUT

*2016-10-25, version 5.1.2*

This app needs to be updated for the 2015 code book still. I love to use this app so I don't have to carry my code book around and now I can't calculate my conduit fills with this anymore. Please update!

### 5/5 — Aaron

*2016-06-07, version 5.1.0*

Great app. Was better before please fix glitches

### 5/5 — Best app

*2016-04-15, version 5.0.9*

It is best app no doubt, need more diagrams, electricians should have this app.

### 4/5 — Great app

*2015-06-14, version 4.8.5*

Very useful when on site and need to check calculations

## Frequently asked questions about Electrical Calc

### What kind of electrical calculations can this app perform?

This app performs a wide range of electrical calculations, including wire sizing, conduit sizing, motor and transformer load calculations, voltage drop, fusing, overload size, ground and bond size, and box fill. It also supports unit conversions and provides NEMA codes and specs for receptacles.

### Is this app based on any specific electrical code?

Yes, this app is based on the Canadian Electric Code, providing code results for various calculations. This ensures that the calculations performed are compliant with the specified code.

### What are the key features for electricians and engineers?

Key features include detailed motor and transformer load calculations with multiple motor support, simultaneous feeder calculations for wire size, conduit size, and voltage drop, and the ability to create and export panel legends. It also calculates allowable ampacity, derating, and maximum wires in conduit.

### How does the app handle voltage drop calculations?

The app easily calculates complicated voltage drop scenarios, providing results for percentage voltage drop, maximum lengths of runs, and wire size. It also supports derating in its voltage drop calculations.

### What are the compatibility and pricing details?

The app is designed for professional electrical use and is available as a paid application. Specific compatibility details regarding operating systems or device types are not provided in the description, but it is implied to be a mobile application.

## Version history (last 5 releases)

### 6.0.7 — 2019-08-17

- Fixed issue with aluminum bonding.

### 6.0.4 — 2019-02-14

- Fixed panel board module to print larger formats.
- Fixed help web link in calculator module.

### 6.0.2 — 2018-11-08

- Updated to the 2018 CEC.
- Major updates to bonding throughout most modules.
- New pipe sizes and types added.
- Minor changes to electric vehicle code.
- Minor version and rule numbers updated.
- Minor bug fixes.

### 6.0.1 — 2018-11-06

- Updated to the 2018 CEC.
- Major updates to bonding throughout most modules.
- New pipe sizes and types added.
- Minor changes to electric vehicle code.
- Minor version and rule numbers updated.
- Minor bug fixes.

### 6.0.0 — 2018-11-05

- Updated to the 2018 CEC.
- Major updates to bonding throughout most modules.
- New pipe sizes and types added.
- Minor changes to electric vehicle code.
- Minor version and rule numbers updated.
- Minor bug fixes.

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## More apps by Snappy Appz Inc.

- [Construction Calc Lite](https://appshunter.io/ios/app/construction-calc-lite/id380648615)
- [Electrical Calc USA](https://appshunter.io/ios/app/electrical-calc-usa/id391412994)
- [Construction Calc Pro](https://appshunter.io/ios/app/construction-calc-pro/id458909118)
- [The Best No Smoking App](https://appshunter.io/ios/app/the-best-no-smoking-app/id458916516)
- [Electrical Calc Pro](https://appshunter.io/ios/app/electrical-calc-pro/id514793318)

All apps by Snappy Appz Inc.: https://appshunter.io/developer/375591377

## Related topics

[ideal electrical](https://appshunter.io/ios/topics/ideal-electrical)

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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 2026-08-27.*