Why we built Shoe Size Calculators

Shoe Size Calculators is an independent, ad-light project built around one simple frustration: most "shoe size calculator" results online are just static charts you have to eyeball yourself. We wanted something that actually calculates a size from a real foot measurement, side by side across the sizing systems people actually shop with.

The site converts foot length and width into US, UK, EU, AU/NZ and Mondopoint sizes for men, women, kids and toddlers, and adds a rough width fit and a popular-brand reference on top. Everything runs in your browser, there's no account, no app, and no measurement data is stored anywhere.

The size charts and brand fit notes are built from commonly published sizing standards. Because there's no single global manufacturing standard for shoes, treat every result here as a reliable starting point, not a guarantee, and check a retailer's own size chart when one is available.

Have feedback, spotted an inaccurate chart, or want a sizing system we don't cover yet? Get in touch.