The foot width calculator shows in a few seconds whether your foot is narrow, standard or wide. It divides your width by your length, and that ratio sets the label.
How do you use the foot width calculator?
Measure at the end of the day or after practice, in the socks you play in. Put your heel against a wall on a sheet of paper, then mark your longest toe and the widest spot of your forefoot. Measure both feet and enter the larger numbers. You can use millimeters or inches.
The full step by step is in how to measure foot width.
What does the result mean?
The index is your width divided by your length. Under 0.36 we call a foot narrow, up to 0.40 standard, up to 0.43 wide and above that very wide. Those limits are a working hypothesis, because makers do not share a single width standard. That is why your complaints count as much as the number: if a cleat presses on the sides, it is too narrow for you, whatever the label says.
A few more tips: measure at the same time of day each time, keep your weight on the foot you are tracing, and write the numbers down before you enter them. If your two feet differ, always use the larger one, since the cleat has to fit that foot.
Once you have a label, the next step is a cleat that matches. The cleat finder uses your width, and the wide soccer cleats guide explains what to look for.
Why do we only use one size chart?
Brands use their own size charts, and we only copy a chart that we could check with the manufacturer. We could do that for Nike’s official size chart for soccer cleats, so the starting size you see comes from there. Other brands can run differently, so read the size tip for your model and use the size chart tool for the conversions.