Mountainfeet’s sizing app

Use our downloadable template together with our unique calculator below to assess your foot size and width.  Bear in mind that sizing information is subjective and varies between manufacturers and genres of footwear.  Our carefully researched sizing data is designed to work best with footwear built closely to the Brannock size data set such as is used by Yorkshire manufacturer Altberg.  Because the majority of our high quality footwear is built on similar length lasts, the UK size calculator below takes some of the guesswork out of choosing what’s going to fit you.

How to measure your feet
Download our measuring template, print it on A4 paper and check it for accuracy using a ruler or the credit card box test.  You may need help from a friend or family member to accurately measure your feet.  Now follow the illustrated instructions in the slide show below before scrolling down to the calculator application.

  • 1) Fold across the thick dashed heel line as shown.

Sizing calculator*

You should now have four measurements – two for each foot.  Take the longest foot’s two measurements to use with our online sizing calculator.  Please note: If your shorter foot happens to be substantially wider than the longer one then use the longest foot’s length and the shortest foot’s volume in the calculator to ensure you get footwear long and wide enough to accommodate both feet.

Select the nearest length and volume figures in the calculator to determine your UK footwear size and an approximation of width.  Go to the nearest figure in the drop down – if in between then round up NOT down.  Our figures are calibrated to allow for mid weight walking and running socks so no additional adjustment for sock wear should be needed.

*Just in case you can’t view the app on your particular device, we have a simpler alternative calculator available for you to enter your figures in by clicking here.

You can also view and use Mountainfeet’s own unique Smartphone footwear sizing calculator app using the QR link here.  You’ll need to register for and log in to OpenAsApp’s own container application which is downloadable free at either Google Play or Apple’s iOS App stores. Then, you’ll have a handy reference tool at your fingertips for all the family!

© Si Taylor 2021