How do I convert UK shoe size to centimeters?

Select the relevant chart and enter a listed UK whole or half size. The tool returns the chart's approximate foot length. Because manufacturers differ, use your measured heel-to-toe length and the brand's own chart for a purchase decision.

Is foot length the same as the physical shoe length?

No. Foot length is the heel-to-toe measurement the size is intended to fit. The inside and outside dimensions of the shoe include fit allowance and depend on the model, shape and manufacturer.

Do UK men's and women's sizes have different technical lengths?

The ISO adult UK technical foot-length reference used here is the same for men and women. Individual brands can still use different lasts, widths and fit allowances.

What is UK adult size 9 in centimeters?

The ISO 19407:2023 technical reference for UK adult size 9 is 27.10 cm (271 mm). A brand's recommended foot length may differ.

Can I use this chart for UK children's shoes?

No. Children's UK numbering restarts across age bands, so a size without its age band is ambiguous. Use the chosen manufacturer's children chart.

Does this tool convert EU or US sizes?

No. Cross-system labels vary by manufacturer. This tool deliberately reports the UK-to-foot-length technical reference only.

UK Shoe Size to CM Converter

Enter an adult UK half or whole size from 4 to 15 to get the ISO 19407:2023 technical foot-length reference in cm, mm, and inches.

Convert UK Shoe Size to CM

Men's Size Chart

ISO 19407:2023 reference

UK	CM

Summary

Enter an adult UK half or whole size from 4 to 15 to get the ISO 19407:2023 technical foot-length reference in cm, mm, and inches.

How it works

Select Men or Women; the adult UK length reference is the same for both.
Enter your UK shoe size in the input field.
The converter matches the entered whole or half size to this reference chart without silently rounding it.
The result shows the ISO technical foot-length reference in cm, mm and inches.
Browse the full size chart on the right to see all available sizes at once.

Use cases

Buying shoes from Asian brands that list foot length in cm rather than UK sizes.
Converting a UK size to cm when ordering custom or orthopaedic footwear.
Checking a measured adult foot length against the UK technical reference before consulting a brand chart.
Verifying fit when a size chart only shows foot length ranges in millimeters.
Finding the right UK size after measuring your foot length in centimeters.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu