Choose the size scale
Select men or women so the calculator starts with the correct sizing category.
YIODesigner · UK sneaker sizing tool
Sneaker Size CalculatorMen's & Women's Shoe Size Converter
Use YIODesigner's sneaker size converter to compare men's and women's sizes across popular brands, UK, US, EU and CM labels.
- 16
- Popular brands
- 4
- Size systems
- 2
- Gender scales
Interactive shoe size converter
Find your closest chart match
Closest chart match—US
Select a size to compare
—Estimated foot length
Fit noteBrand sizing can vary by model, last and region.
Guidance, not a fit guarantee. Always check the product page and current official brand chart.
Enter a pair you know
Choose its brand, regional system and size—or use your foot length in centimetres.
Compare before buying
Read the closest label, then confirm the selected model's fit guidance.
Regional shoe size conversion
Convert UK, US, EU and CM shoe sizes.
A shoe size converter translates a known label into the closest label in another sizing system. For UK shoppers, this trainer size converter also keeps foot length visible so regional results are easier to compare.
Brand shoe size converter
Compare sneaker sizes across popular brands.
Use the sneaker size converter to match one familiar pair with another brand. Each shortcut opens the calculator with that target brand selected.
Popular brand comparisons
Gender-specific sizing
Men's and women's shoe size converters.
US gender scales can differ even when foot length is similar. Choose the current and target categories separately instead of applying one universal rule.
Shoe size conversion chart
UK, US, EU and foot length at a glance.
The table follows the current brand and gender selection in the calculator. Use it as a general reference, then check the exact product model.
| Foot length | UK | US | EU |
|---|---|---|---|
| 24.5 cm | 6 | 7 | 38.5 |
| 25.0 cm | 6.5 | 7.5 | 39.5 |
| 25.5 cm | 7 | 8 | 40 |
| 26.0 cm | 7.5 | 8.5 | 41 |
| 27.0 cm | 8.5 | 9.5 | 42.5 |
| 28.0 cm | 9.5 | 10.5 | 44 |
| 29.0 cm | 10.5 | 11.5 | 45.5 |
| 30.0 cm | 11.5 | 12.5 | 47 |
Foot length to shoe size
Measure once. Compare with better context.
The shoe size calculator by CM uses heel-to-toe length as the common comparison point. Measure both feet while standing and use the longer result.
Read YIODesigner's complete sneaker size guide ↗- 1
Prepare
Stand on paper wearing the socks you expect to use.
- 2
Measure both feet
Mark the heel and longest toe, then measure in centimetres.
- 3
Use the longer foot
Choose CM in the calculator and verify the result against the product page.
Found your closest size?
Continue with the right collection.
Shoe size conversion FAQs
Direct answers before you choose a pair.
How do I convert UK shoe sizes to US sizes?
Choose Men or Women, select the brand and UK as your current size system, then enter your UK size. The converter returns the closest US size for the target brand. Gender and brand matter, so avoid relying on one universal rule.
What is an EU shoe size in the UK?
EU-to-UK conversions are not perfectly uniform across every brand. Select EU as your current system, choose the brand and size, then compare the closest UK label alongside the estimated foot length.
Are UK men's and women's shoe sizes the same?
Not always. Brands can use different men's and women's conversion scales, widths and lasts. Use the correct gender tab and check the individual product page before buying.
How do I calculate shoe size from foot length?
Measure both feet from the back of the heel to the longest toe while standing. Use the longer measurement in centimetres, choose CM in the calculator and compare the closest size in your preferred brand.
Do Nike and adidas use the same sizing?
No single brand-to-brand rule works for every pair. Published labels, lasts and model construction can differ. Use foot length as the comparison point, then verify the result against the current chart and model-specific guidance.
Should I size up or down when between sizes?
Start with the larger foot measurement and consider width, socks and intended use. A wider option may be better than a longer shoe. Always prioritise the product's fit note and the brand's current chart.
Is a trainer size converter completely accurate?
No converter can guarantee fit because feet are three-dimensional and shoes vary by model, last, material and region. This tool gives a practical closest match, not a medical measurement or fit guarantee.