Electrical calculator app based on ohms law. Calculate to and from any of the following: Watts, Amps & Volts (single phase) and kW, Amps, Volts & Power Factor (three phase) using this advanced ohms law calculator.

Calculate to or from Watts, Amps, Volts with this handy electrical converter with Single Phase & Three Phase calculations.

Check out our other suite of electrical apps by Pro Certs Software Ltd.

What's New

Version 3.1

3.1 Minor improvements and added a share function.

Ratings and Reviews



This app does not work they stole my .99 this is a ripoff don't by they get rich by taking your money and giving you nothing. I want my money back I also don't understand why iTunes would let someone sell something without checking them out first these people or thief's. if you but this app your crazy just open a window and throw your money out at lease you know where it went.

ZX Tunes

Worked great until iOS 6

It worked great until iOS 6 update. I never had to use Internet content to use. If on iOS 5 still, it is fine. If you are on iOS 6, don't bother unless or until they fix it for iOS 6.


waist of money

this app only works with a internet connection it is a rip off an not worth the mony if it cant be used as a offline app dont waist your time an money on this app like i did
if i can get a refund i would an will the maker of this app should be made to make it work offline or be band form the app store an at $2.12 with no try before you buy that just makes me feel like this app is a scam this app needs to be fixed or be removed an ppl be given refunds


Pro Certs Software Ltd
7.5 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Pro Certs Software Ltd


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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