Cable Calc

Cable Calc

Cable Size Calculator

0 ratings
12 reviews
$14.99

Details

  • Released
  • Updated
  • October 10, 2015
  • September 6, 2025

Features

Cable Calc screenshot #1 for iPhone
Cable Calc screenshot #2 for iPhone
Cable Calc screenshot #3 for iPhone
Cable Calc screenshot #4 for iPhone
Cable Calc screenshot #5 for iPhone
Cable Calc screenshot #6 for iPhone
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About

Calculate the minimum required cable size for single and three-phase circuits based on BS 7671 standards. Input design criteria, installation methods, and environmental factors to determine appropriate cable dimensions. Save or print detailed results for your projects.

โœ“Calculate single and three-phase radial circuits
โœ“Calculate single-phase ring final circuits
โœ“Based on BS 7671 standards
โœ“Enter design criteria
โœ“Select cable type, installation method, ambient temperature, and grouping
โœ“Save or print results
โœ“Add circuit and client details
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What's New in Cable Calc

2.1.35

September 6, 2025

04/09/2025 v2.1.34 This brand new version has been completely redesigned and rebuilt from scratch. - More cables added. - More installation methods added. - Tips and guides to help you along the way. - Single phase and three phase cable calcs. - Radial circuits and ring final circuits. - References the tables in BS 7671. - References to specific regulation numbers.

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User reviews

Donโ€™t waste your money

Not very good itโ€™s just made to generate more sales

Incorrect response

App developer stated in response that only SWA cable types can be installed on ladder or tray. This is incorrect, BS7671 Tables 4D1A & 4E1A permit installation of unarmoured cable on tray or ladder. Methods F&G. There are occasions where I do not want SWA cable. The App only gives an option for installation of unarmoured cables in or on wall.
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Works ok but ads are too distracting

As above, would use it more if not for the bombarment of advertising nonsense.

Very limited

If you want to do anything big (>800A) then forget it.

Problems

On step 2, there is a problem where you can not select the ambient temp without clicking on the two options below first. This needs fixing. (It says โ€œno optionโ€)
To improve this app, it would be helpful to allow you to select the wrong cable, and tell you which part doesnโ€™t comply, and then you โ€œ+1 sizeโ€ until the cable is compliant, where as you can not see the information now until you โ€œgo up a sizeโ€.
I.e. if the volt drop was none compliant etc, this would be useful but I guess may be difficult (and maybe not what it was designed for). I just thought I would feed this back.
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Developer apps

FAQ

What is the price of Cable Calc?

Cable Calc is a paid application priced at $14.99. This one-time purchase grants you access to all its features for calculating cable sizes.

Does Cable Calc have ads?

No, Cable Calc is ad-free. You can use the application without any interruptions from advertisements.

On which devices can I use Cable Calc?

Cable Calc is available for iPhone, iPad, and iPod touch devices. It is designed to run on Apple's iOS ecosystem.

How often is Cable Calc updated?

The latest version of Cable Calc is 2.1.35, last updated on September 6, 2025. Updates typically include improvements and adherence to the latest standards.

What electrical standards does Cable Calc follow?

Cable Calc is based on the BS 7671 standards for calculating cable sizes. This ensures compliance with relevant electrical regulations.

Can I save the results from Cable Calc?

Yes, you can print or save the calculated cable size results directly from the application. This allows for easy record-keeping and reporting.

What information can I input into Cable Calc?

You can enter design criteria, select cable types, installation methods, ambient temperature, and grouping. You can also add circuit references, descriptions, client names, and installation addresses.

What is the age rating for Cable Calc?

Cable Calc has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.