Chippy Tools, is the go-to tool for carpenters and home handymen looking to take the hassle out of maths on the job site. Whether you are using your iPhone or your iPad Chippy Tools is the app for you. With its easy to use design Chippy Tools allows you to think about the Carpentry and let the app do the maths.

Baluster spacing is calculated quickly and simply.
Check your deck, house or anything in-between is square with the check square calculator.
Concrete quantities for slabs and post holes.
Raked wall calculation using 2 heights.
Raked wall calculation using pitch.
Running Calculations, simply enter the start number and the interval and away you go.
Stair Calculator, that provides the going, stringer and rise.
Triangle Calculator, let the app worry about Trigonometry & Pythagoras, you just need to provide the measurements you have.

Many more to come.

If there is a calculator that you would like to see added, please let us know by emailing

Chippy Tools supports metric measurements at this time.

What’s New

Version 1.4

Adds check square calculation for decks, houses & everything in-between. It's not a new calculation for the app, just a new interface for an existing calculation!
Reorganised concrete calculations into a submenu, in preparation for more calculations.
Adds ruler icon for running calculations.

App Privacy

The developer, Peth Pty Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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