📏 Shoe Width Finder
Enter your ball-of-foot width and shoe size to find your US width letter — from narrow AA to extra-wide 4E — and stop guessing why standard shoes never quite fit.
🦶 Find Your Width Letter
What is a Shoe Width Finder?
It works out your US width fitting — the letter beside the size number that tells a shoe how much room to leave across the ball of your foot. Since the width a letter represents grows with shoe size, the tool takes both your measured width and your size, normalises them, and maps the result onto a documented band chart running from AA (narrow) through D (medium) to 4E (extra wide).
Use it if standard-width shoes always feel tight or sloppy, if you're buying online where you can't try widths on, or if a podiatrist has told you to look for wide fittings. Widths are nominal — brands and lasts vary — so treat the result as a strong starting point and confirm the fit in person.
❓ Frequently Asked Questions
How does the shoe width finder work?
Measure the widest part of your foot — across the ball — in millimetres, enter it along with your US shoe size, and the tool matches it to a documented width-band chart. Because the same width letter covers a wider foot at a larger size, it adjusts the bands by roughly 1.5 mm per size before returning your letter (AA, B, D, E, 2E, or 4E) and category.
What do the width letters AA, B, D, E, 2E and 4E mean?
They're the US width scale from narrowest to widest. AA is narrow, B is a standard medium for women, D is a standard medium for men, and E, 2E (EE), and 4E (EEEE) are progressively wider fittings. A shoe labelled just with a size number is usually a medium (B for women, D for men) by default.
How do I measure the width of my foot?
Stand with your weight on the foot, wrap a soft tape measure or a strip of paper around the widest part of the ball of your foot, and read the measurement in millimetres. Measure both feet and use the larger, and do it at the end of the day when feet have spread to their fullest.
Why does width matter as much as length?
A shoe that's the right length but too narrow pinches across the ball and causes bunions, blisters, and numbness, while one that's too wide lets the foot slide and rub. Getting the width right is what makes a correctly sized shoe actually comfortable — which is why quality brands offer multiple widths in the same length.