How do I convert US shoe size to CM?

Use the converter on this page: select US, enter your size, and view the CM equivalent. You can also measure your foot in cm and enter that for the most accurate conversion.

Are UK and US shoe sizes the same?

No. UK sizes are typically about one size smaller than US for the same foot length (e.g. US 9 ≈ UK 8).

Why do shoe sizes vary by country?

Different regions developed their own sizing systems. EU uses a formula based on foot length in cm; US and UK use different scales. Conversion charts align these systems.

How do I measure my foot in cm?

Stand on paper, mark heel and longest toe, then measure the distance in cm. Use the larger foot. Our measurement guide below has step-by-step instructions.

International Shoe Size Conversion Chart

Q: What is EU 42 in US shoe size?

EU 42 is approximately US men's 9 and US women's 10. Use the converter above for your gender.

Finding the right shoe size across countries can be confusing. A "size 9" can mean different things in the US, UK, EU, or Asia. Use the converter below to get your exact size instantly, or scroll to explore full charts and regional guides.

Results update automatically as you select options

Converted Sizes

Standardized conversion. Fit may vary by brand and width. Shoe width guide

Quick Converters

Shoe Size Converter

Convert shoe sizes between US, UK, EU, Japan, China, and CM.

Clothing Size Converter

Convert clothing sizes for tops, pants, and dresses across regions.

CM to US Shoe Size

Convert foot length in centimeters to US shoe sizes.

US to EU Size

Convert US sizes to European sizing standards.

UK to US Size

Convert UK sizes to US equivalents.

EU to US Size

Convert European sizes to US sizing.

Mattress Size Chart

Compare mattress sizes across US, UK, and EU.

Measurement Tools

Explore unit conversions and measurement standards.

International Shoe Size Conversion Chart

Reference table (men's scale). Use the converter above for women's and kids' or for exact equivalents.

US	UK	EU	JP	CM
6	5	39	25	24
6.5	5.5	39.5	25.5	24.5
7	6	40	26	25
7.5	6.5	40.5	26.5	25.5
8	7	41	27	26
8.5	7.5	41.5	27.5	26.5
9	8	42	28	27
9.5	8.5	42.5	28.5	27.5
10	9	43	29	28
10.5	9.5	43.5	29.5	28.5
11	10	44	30	29

Men's sizes

View full men's size conversions.

Women's sizes

Explore women's size charts.

Kids' sizes

Find accurate sizing for children.

How to Measure Your Foot in CM

Measuring your foot in centimeters gives you a universal size that works with any regional chart. Stand on a sheet of paper with your heel against a wall. Mark the tip of your longest toe, then measure from the wall to the mark in cm. Repeat for both feet and use the larger measurement. Use the converter above with “Centimeters (CM)” as the source region to get your size in US, UK, EU, or JP. For a printable guide and more tips, see Measurement Tools and How to Measure Your Feet in CM.

US sizing

UK sizing

EU sizing

All size pages

Why sizes don’t line up everywhere

Different scales

US, UK, EU, and JP labels rarely describe the same foot length in millimeters.

Brand lasts

Two brands can label the same length differently based on shape and materials.

Use centimeters

Measuring both feet in cm is the most reliable way to cross-check any chart.

Frequently Asked Questions

What is EU 42 in US shoe size?

EU 42 typically converts to US men's size 9 and US women's size 10.5, depending on brand and width. Use any converter on this page when available.

Are EU and US shoe sizes the same?

No. The EU sizing system and US shoe sizing scale use different scales. International shoe size conversion is most reliable when you anchor to foot length in cm.