The #1 Feet/Inch Calculator app!

Stuck? Check out the help (?) section or email

New Layout:
Blue = Feet Input (or other imperial)
Green = Inches Input (or metric)

Turn on Advanced for Area and Volume Calculations

Tools: Converter, Triangle, Scale, Circle, Chords / Arcs, Stair Stringers, Board Feet

Old Layout:
How to use the app:
--- The top line is your final result
--- The second line shows your current input
--- The top panel (with feet selected) is used to input feet
--- The bottom panel (with inches selected) is used to input inches
--- The fraction column is used to input common fractions. Click x/y to access x/16,x/32, and x/64 fractions
--- Input meters, cm, or mm by selecting the corresponding tab. Either panel will work for input
--- Calculate a percentage of the final answer using the % tab
--- Click Review to review your calculation steps
--- Click All Clear (bottom right) to start a new calculation

What’s New

Version 6.44

Inches as Fractions option (E.g. 60.75" -> 60 3/4")
For triangle tool, angle precision now matches decimal precision in settings.
Golden ratio in quick-edit menu.

Ratings and Reviews

4.3 out of 5
62 Ratings

62 Ratings

grendelum ,

Everything I wanted and more but...

I’m in no way in the construction industry, but I am building a new house. Having just received the survey, I wanted to do some calculations on my current square footage, the overall length and width of my existing home etc... nothing major, purely low volume stuff.

The app worked perfectly, doing everything I asked of it and allowing me to do more (the triangle calculator was handy for getting an idea of the size of my new homes roof)... tho (and maybe I missed it), I would have liked to be able to get a slope/pitch ratio from my input of the angle (I actually couldn’t get any of the pitch x/y buttons to work), minor detail as I’m setting my roof by the angle of my latitude for a solar PV array.

One star is lost because I *wanted* to toss the few dollars your way for making just the right app available for me at just the right time. Problem is, every time I click on the “Remove ads” button the app crashes... this is a 6th gen iPad with the latest iOS installed so... no cookies for you. If there’s another way (a pay for, ad-free version on the AppStore say) do let me know as I really appreciate the effort that went into this !!

While we’re at it, it’d be nice if we could change the font color as well as the bg color... I do love a black bg with green text for that old terminal feeling !!

Developer Response ,

Update - Terminal theme is now available :)

For the triangle, click on the numbers next to T:. Then click on the Pitch button. Now you can change the numerator and denominator using the top and bottom pads. If you want to input degrees and get a pitch, hit 'Degree', then enter your degrees, then select Pitch.

Also, purchase is fixed if you're still interested.


57mink ,

Best for woodworking

I really like this app. My go to calculator.

At first I thought I would have to learn to live with the wood looking theme, but it’s changeable to 8 or so other colors

I really like how you can limit the fractions to something on your ruler. You can have it get very precise or say have it round to the nearest 1/32nd or 1/16th. At the same time it shows you the decimal equivalent and you can cycle the result to centimeters, millimeters and more, then back, or not go to metric at all.

The data entry is different than all the others I’ve tried. You enter the feet in the top section, inches in the section below that, and select the fraction from a scrolling menu.

The scrolling fraction menu is configurable and limits fractions to those found on a ruler.

You can change the imperial entries to metric and have imperial results and metric at the same time, or just one or the other.

It has proven very handy for me working with it in split view on my iPad along side a set of plans.

Very nice app, A+

15909oldretiredguy ,

Customer Support

When it comes to a computer or phone product, be it hardware or software, customer service doesn’t make the product work better but it is, in my opinion, what marks the creator or company as to whether they truly care about ‘the customer’.

Customer support for this app is top notch! The developer deems it important enough to quickly reply when a customer has an issue or problem with the app. That says a lot to me!

I’m no math whiz so this app has come in very handy when I’m attempting to create my latest woodwork or metal project. Thank you for a great little app! 🤓

Developer Response ,

Thanks for the review and for reaching out to me with your questions!


Evan Winograd
34.9 MB

Requires iOS 10.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE (1st generation), iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPad Air, iPad Air Wi‑Fi + Cellular, iPad mini 2, iPad mini 2 Wi‑Fi + Cellular, iPad Air 2, iPad Air 2 Wi‑Fi + Cellular, iPad mini 3, iPad mini 3 Wi‑Fi + Cellular, iPad mini 4, iPad mini 4 Wi‑Fi + Cellular, iPad Pro (12.9‑inch), iPad Pro (12.9‑inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7‑inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5‑inch) Wi‑Fi + Cellular, iPad (6th generation), iPad (6th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch), iPad Pro (11‑inch) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (3rd generation), iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi‑Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi‑Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch) (2nd generation), iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (4th generation), iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular, and iPod touch.



Age Rating
In-App Purchases
  1. Lifetime Purchase $5.99


  • Family Sharing

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

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