Convert decimal length measurements for 1/1000 inch, feet, mm, cm and meters to imperial mixed fractions of an inch.
Choose under or over rounding.
Set your desired ruler increment 1/4, 1/8, 1/16, 1/32, 1/64
Visually compare the fraction with the decimal measurement.

What’s New

Version 3.1

Cosmetic changes only.
Numeral buttons have click sound and highlight on press, round shape and reordered to a more conventional layout.
Ruler has been highlighted in yellow.

Ratings and Reviews

3.1 out of 5
10 Ratings

10 Ratings

Mdtrac ,

Wish it did more

The conversion part is great, but I wish it had more calculator functions. It is a bit tedious to go from a calculator and then plug the results in here to give a nice useful imperial fractional measurement. The rounding to an approximate fraction is very useful for rough work. For example, I have .7 inches, with the app it is quite quick to get 3/4 (round up to the nearest 1/4) or 5/8 (round down to nearest 1/8th) etc. I can usually do it in my head, but it is nice to have an easy way to double check.

moosilauke2021 ,

Rounds up and down, but…

… no option to round to the nearest fraction. Otherwise, very simple and useful.

Developer Response ,

The ruler graphic, along with decimal and fraction indicators, show you the rounding amount. Selecting round up or down lets you view the difference and decide which rounding suits your needs.

chriscox80 ,

Does exactly what I was looking for

Converts decimals to closest fraction (on tape measure). And you can start with inches or metric. Super simple app but does what it says.

App Privacy

The developer, Paul Robbins, 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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