What's your shoe size, everywhere?

Our shoe size converter translates your size across 400+ brands such as Adidas, Nike, Converse and more, in US, UK and EU sizing. Here is how to find your size in a few seconds:

1. Pick who it's for. Choose Men's, Women's, Boy's or Girl's shoes so the tool uses the right size scale.
2. Select the shoe type. Casual, flats, flip-flops, formal, heels, sandals, sport sandals or sport shoes. The model factors in shoe material, sole type and the typical width of each type to find the ideal fit.
3. Choose the brand to convert from. e.g. converting Nike to Adidas, Converse to Aldo or Puma to Nike. The available brands change with the size and type you pick, since some brands don't make every shoe type.
4. Choose your size metric. US, UK or EU. We show all three at once so you can double-check your size.
5. Enter your size. For example US 10.5 or EU 44, or switch to "by foot length" and enter your measured foot length in cm or inches (the most reliable cross-brand key).
6. Read your result. Our recommendation model, trained on 1,000,000 shoes, estimates the ideal size for the target brand and shows it in US, EU and UK.

If you'd like to use the recommender on your own website or e-commerce store, email us here.

What is shoe size conversion and how does it work?

Shoe size conversion translates your shoe size from one international sizing standard to another, or from one brand's sizing to another. It's useful when buying shoes from a different country or brand, so you get a perfect fit. For instance, converting a US men's size 10 in Adidas to a Nike size means understanding the sizing differences between those brands. Our tool does this for you: select your current size and brand, then convert it to your desired size and brand.

How can I use the shoe size conversion chart?

Our shoe size conversion chart helps you compare sizes across regions like US, UK and European shoe sizes. Find your size in, say, US men's sizes, and read across to your European or UK size. For the full reference tables, see our international shoe size conversion chart.

Why are European shoe sizes different from UK sizes?

European and UK sizes use different measurement systems. European sizes use a metric system based on the length of the foot in centimeters (Paris points). UK sizes are based on the length of the last used to make the shoe, measured in barleycorns (one-third of an inch). Understanding this matters when converting from a European shoe size to a UK shoe size.

Can I convert women's shoe sizes to men's and vice versa?

Yes. There's typically a 1.5-size difference between men's and women's shoes in US sizing, so a women's 8.5 is roughly a men's 7. This helps when shopping unisex styles. Toggle between men's and women's in the converter above, or use our dedicated women's to men's shoe size chart and men's to women's chart.

How important are foot length and foot width for the right size?

Both are crucial. Shoes that are too narrow or too wide are uncomfortable even when the length is right. Measure your foot length from heel to longest toe and your width at the broadest part. Foot length in cm is the most reliable way to match sizes across brands, and it's what our converter uses. See the shoe width chart for width sizing.

How do size conversions help when buying shoes online?

Size conversions are essential for buying from international or unfamiliar brands, so the shoe fits regardless of the sizing standard used. Our tool covers foot length in inches and centimeters plus EU, US and UK sizes, for shoppers worldwide.

How do I measure my foot correctly with a tape measure?

Stand on a sheet of paper at the end of the day (feet are largest then), mark from your heel to the tip of your longest toe, and measure the line with a tape measure in inches or centimeters. Then enter that foot length in the converter. For a full guide, see our shoe size conversion chart.

What should I consider when converting sizes for sports shoes?

Consider both the style and the brand's specific sizing. Sports shoes can fit differently by purpose. A running shoe and a basketball shoe from the same brand may size differently due to design and function, so factor the model in, not just the brand.

Does the converter work for different shoe types like heels or casual shoes?

Yes. The tool handles heels, casual shoes, sports shoes and more, accounting for the sizing variations and styles of each footwear type for an accurate conversion.

Is there a difference in shoe sizing between European countries?

Sizing can vary slightly across European countries. There is a general European standard, but some countries have minor variations, and the converter accounts for them.

What brands does the shoe size converter cover?

The converter covers 400+ brands: 295 in men's and 234 in women's, plus kids' lines. That includes Nike, Adidas, Puma, New Balance, Converse, Vans, Crocs and many more, each with brand-specific sizing.

How do I make sure the converted size is the perfect fit?

Consider both the length and width of your foot. The tool factors in the brand's sizing, shoe type and material, but for the best result measure your foot length with a tape measure. Sizes vary slightly between styles and brands, so also check the specific brand's size chart and customer reviews for fit tips.