WoodworkerCalc is optimized for doing fractional calculations required in woodworking.

WoodworkerCalc is a specialized calculator for fine woodworking and other crafts. It makes it very easy to enter and perform calculations on measurements and tracks errors that can accumulate during layout. When laying out repeating units, a small round off error in the fractions can result in large errors. WoodworkerCalc displays these errors so the layout accommodate them.

It is easy to go back and forth before decimal and fractional results. You can choose the precision of the fraction to reflect real-world working units. For example, 1/32 is the typical smallest unit used for woodworking layout.

Calculations are stored on “tapes” which can be saved and restored later. This allows sequences of calculations to be preserved for later use.

There is also a board foot calculator which is useful when purchasing material.

A triangle calculator avoids the need to remember high school trigonometry.

What’s New

Version 2.05

This app has been updated by Apple to display the Apple Watch app icon.

Updated for iPhone X display

Ratings and Reviews

4.9 out of 5
35 Ratings

35 Ratings

SportsShooter ,

Nice app

This app is very handy if you do a lot with fractions. I'm a cabinet builder and use fractions all day. This app is so useful I dedicated an iPad 2, app won't do landscape on iPad 1, to this app and mounted above my workbench. Very easy to use.

Bois d'Avril ,

Super App!

I collect fraction calculators because most of them are lacking the function I need or have silly interfaces. This one is great! I am old and have trouble with small fonts, so I wish they’d make the results show in a bigger font.

Jim Perry Carpentry ,

Long time user

I'm a Professional Finish Carpenter and Cabinetmaker
I use this app almost daily!
Highly Recommended!

App Privacy

The developer, Jim Barstow, 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

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

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