Nike Size Converter & Sizing Guide

Most Nike shoes generally run true to size (TTS) in length. However, fit can vary significantly by model and width is often standard to narrow. For instance, Air Force 1s tend to run large (size down 0.5), while Dunks can be narrow (consider sizing up 0.5 for wide feet). Always check model-specific advice and your measured foot length in CM.

Nike shoes are often designed with a standard to slightly narrow width. Individuals with wide feet might find many Nike models snug, especially in performance or classic lifestyle styles. You may need to size up a half size to gain some width, or actively seek out specific models known to be more accommodating or available in "wide" versions (check Nike.com for options).

For Nike, women's US sizes are 1.5 sizes larger than men's US sizes for the same foot length. So, if a woman wears a men's US 7, she would wear a women's US 8.5. If a man wears a women's US 9, he would wear a men's US 7.5. Our converter tool at the top handles this for you! Always refer to your CM foot length for the most precise comparison.

For Nike Air Force 1s (AF1s), it's widely recommended to size down a half size (e.g., if you're a US 9, try 8.5) from your true size. AF1s are known to run large with a spacious fit, so sizing down usually provides the best, most comfortable fit.

Nike Dunks generally fit true to size (TTS) in length, but they can be snug or narrow across the midfoot and in the toe box, especially for wide feet. If you have wide feet or prefer a roomier fit, considering sizing up a half size for Dunks is a common recommendation.

Most Nike running shoes, like the Pegasus series, fit true to size (TTS) in length. However, for running, it's often advisable to have a little extra room (a thumb's width) in the toe box. If you're between sizes, sizing up a half size is a common practice for running shoes to accommodate foot swelling during activity.

This depends heavily on the specific Nike model and your fit preference. For casual shoes known to run large (like AF1), you might size down. For performance running or basketball shoes, or if you have wide feet, sizing up a half size is generally safer. Always prioritize your measured foot length in CM and consult the specific Nike.com product page and recent user reviews.

You can use our Nike shoe size converter tool at the top of this page. Select your US size (and gender) to find the corresponding Nike size in EU, UK, or CM. Our detailed Nike size charts also provide a clear visual guide for direct conversion, including specific advice for men's to women's size conversions.