Nike Shoe Sizing Guide

Last Updated on May 27, 2025 by Andy Walker

Nike is one of the most popular athletic shoe brands in the world, but sizing can sometimes be tricky. Known for its performance running shoes, iconic sneakers, and stylish lifestyle models, Nike footwear tends to run narrower than many competitors.

If you’re switching from another brand or buying Nike shoes online for the first time, this guide will help you understand how Nike sizing works and how to get the best possible fit.

Scroll to: Men’s chart or women’s chart

Also see: Shoe calculators

Do Nike Shoes Run Small or Large?

Yes, many Nike shoes run slightly small or narrow, especially in the toe box. This is especially true for their performance and lifestyle sneakers. If you’ve worn brands like New Balance or Brooks, Nike may feel tighter by comparison.

Things to note:

• Most Nike shoes fit snug, especially in width and around the toes.
• Sizing up by half a size is common, especially if you’re between sizes or wear thicker socks.
• Kids’ and lifestyle models often run even smaller than performance shoes.

In general, if you’re unsure or switching from a brand with a wider fit, consider ordering both your usual size and a half-size up to compare.

How Nike Shoes Fit

Nike shoes tend to run more narrow than many other brands. Here are the most important things to consider:

• Snug toe box in most styles
• True to size in length, but narrow across the midfoot and toes
• Limited width options—most Nike shoes come in standard width only
• Some models stretch slightly, especially mesh uppers, but not enough to size down

Sizing Tips by Footwear Type

Different Nike shoe categories can fit differently depending on design, material, and purpose. Here’s what to expect based on type:

• Running shoes (e.g., Pegasus, Vomero, Infinity RN): Slightly narrow. Go up half a size if you’re between sizes or prefer extra toe room.
• Basketball shoes (e.g., LeBron, KD, Giannis lines): Snug fit with thicker padding. Size up if you have wide feet.
• Lifestyle sneakers (e.g., Air Force 1, Blazer, Dunk): These tend to run small and narrow. Many wearers go up half a size, especially for the Air Force 1.
• Training shoes (e.g., Metcon): Built for stability. Generally true to size but tight through the midfoot.
• Sandals and slides: Often true to size, though strap placement can vary—check product reviews for fit notes.

Measuring Your Feet at Home

It’s important to measure both feet at the end of the day when they’re at their largest. Use this quick method:

1. Place a piece of paper against a wall
2. Stand on it with your heel flush against the wall
3. Mark the longest part of your foot (usually the big toe or second toe)
4. Measure the distance in inches or centimeters
5. Repeat for both feet and use the longer measurement

Compare your measurement to the size chart to determine your Nike size.

Nike Women’s Shoe Size Chart

This table will help you convert your foot length to the appropriate Nike size for women.

Nike Men’s Shoe Size Chart

Use this chart to determine your Nike men’s shoe size based on foot length and international equivalents.

Nike Sizing FAQ

Common questions about Nike shoe sizing and their answers: