What does the Shoe Size Converter (UK/EU/US) do?

Convert shoe sizes between UK, EU, US (men and women) and centimetres. All calculations are performed in your browser using official UK rates and thresholds.

Is this calculator free to use?

Yes. All calculators on Calks.uk are completely free to use. No account or registration is required. All calculations run in your browser — no data is collected.

Can I use this on my phone?

Yes. All our calculators are fully responsive and work on smartphones, tablets and desktop computers. The interface adapts to your screen size automatically.

Shoe Size Converter (UK/EU/US)

Convert shoe sizes between UK, EU, US (men and women) and centimetres.

Last updated: April 2026 · Source: NHS — Choosing the right shoes

Size System

Size

US Men's

US Women's

10.5

Disclaimer

This calculator is provided for informational purposes only and should not be considered as financial or tax advice. All calculations are performed locally in your browser — no personal data is collected or sent to our servers. Rates and thresholds are sourced from HMRC and GOV.UK and are updated for the current tax year. Always verify results with HMRC or consult a qualified professional before making financial decisions.

How It Works

UK shoe sizes use a different scale from US and EU sizes. UK sizes start from 0 for infants and increase in increments of one-third of an inch (8.47 mm). EU sizes follow the Paris point system where each size is 6.67 mm. US sizes are offset from UK sizes by approximately 1 for men and 2 for women.

This converter handles men's, women's and children's sizes across UK, US and EU systems. Half sizes are supported. It also shows the corresponding foot length in centimetres for each size, which is the most accurate way to find your correct size across systems.

Example: UK men's size 9

UK 9 = US 10
UK 9 = EU 43
Foot length: approx. 27.5 cm

Source: NHS — Choosing the right shoes

Frequently Asked Questions

What does the Shoe Size Converter (UK/EU/US) do?: Convert shoe sizes between UK, EU, US (men and women) and centimetres. All calculations are performed in your browser using official UK rates and thresholds.
Is this calculator free to use?: Yes. All calculators on Calks.uk are completely free to use. No account or registration is required. All calculations run in your browser — no data is collected.
Can I use this on my phone?: Yes. All our calculators are fully responsive and work on smartphones, tablets and desktop computers. The interface adapts to your screen size automatically.