Electrical Formulas is an app for anybody that needs to convert the following:

kVA - Amps - Single and three phase.
Amps - kVA - Single and three phase.

kW - kVA
kVA - kW

Electrical Formulas also has a Voltage Drop calculator and covers both mm2 and AWG cables for both single and three phase supplies.

Electrical Formulas also has a power equation calculator, Select your voltage, then enter either amps or watts to calculate the loading.

What’s New

Version 1.2

This app has been updated by Apple to use the latest Apple signing certificate.

Updated for iOS 8 & 9 - Sorry for the massive delay!

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

DTLomax ,


Great tool for the trade. Perfect for pocket reference for electrical engineers.

Kayseekc ,


Excellent app, find it very helpful, well laid out, easy to use, hope you can add cable size calculation at later date, it then would be perfect. Keep it up, well done.

Jr999999 ,

Great App

Great app but no longer works on IOS 9 ;-(

App Privacy

The developer, Andrew Derrington, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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