Award Winning Feet Inch Fraction Construction Calculator for iPhone and iPad. Designed with simplicity, usability and beauty in mind!


- Elegant & Intuitive interface
- Decimal to fraction converter
- Fraction to decimal conversion
- Displays both the equation & the result at the same time
- Advanced editing by easily going back and forth
- Can be added to Today Screen

Ideal for those who work in construction, woodworking and for students to check up their homework!

If you are looking for more advanced features you can upgrade to one or more of the following:

- Stairs Calculations
- Rafters Calculations
- Work in and convert between all building dimensional formats: feet-inch-fractions, inch fraction, yards, decimal feet (10th, 100th), decimal inches and metric (km, m, cm, mm)
- Multiple themes to choose from

Enjoy the FREE Fraction calculator with, no ads, no prompts & if you like it, support us by upgrading or giving us a positive review.

Thanks :)

What’s New

Version 2.4.1

- Fixing a freeze that happens sometime during purchasing an upgrade!

Ratings and Reviews

3.4 out of 5
203 Ratings

203 Ratings

The-Human6.5 ,

It works

It works well. The stupid pop up asking for a review won’t go away unless you leave a review. Super annoying.
Actually it stays even after you leave a review😩 Also fractions such as 5/11 are returned. In construction only 16ths 32nds etc are used, so it isn’t much more useful than a decimal calculator until that is fixed.

MrGrandSalami ,

Convenient Tool

Love this little guy, one of my most useful and convenient tools that I have in my tool bag. Makes a huge difference in my work day when I have to multiply or divide multiple measurements at once when I can just reach in my pocket and open this app up and punch in the numbers. Is quick and efficient, not to mention it's nice not having to double check my math, search for a pen/marker or something to write everything out on, or spend the extra time doing it all over if something has to be moved or changed (which is quite often in the construction business).

J&AArch ,

Replace your Construction Master

I am a architecture student but have been in the construction industry for twenty+ years. I have always used the construction master brand. Since being in school I have downloaded the scientific calculator and simply loved it, now with this new calculator it is the same UI for entering key commands and the look is the same as what your used to. I will definitely recommend this to all my construction friends and my fellow students!


Sarah Ragab
12 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese

Age Rating
Rated 4+
© 2017
In-App Purchases
  1. Construction Calculator $14.99
  2. Fraction Calculator $9.99
  3. Rafter $4.99


  • Family Sharing

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

More By This Developer

You May Also Like