Shoe Size Converter (US / UK / EU / CM)
Online sneaker shopping breaks down on the size box. Pick a system (US / UK / EU / cm / JP), type the size and the tool maps it to every other system at once, including foot length in centimetres.
Please enter a valid number
Equivalent sizes
Exact match- Foot length / JP
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- US Men (US M)
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- US Women (US W)
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- UK
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- EU
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How to measure
Measure barefoot in the evening (feet are largest then), heel against a wall, on a sheet of paper. Mark the longest toe and measure to the wall — take the longer of the two feet.
Chart aggregated from Nike, Adidas and Brannock-aligned reference tables for general use. Individual brands (New Balance, Vans, luxury houses) can run ±0.5 size off — always check the brand's own chart.
Formula
Approximate conversions (cm = foot length): US Men ≈ foot_cm − 18 US Women ≈ US Men + 1.5 UK ≈ US Men − 1 EU ≈ (foot_cm + 1.5) × 1.5 (Paris point) JP / CN ≈ foot_cm (Mondopoint)
- · Chart covers adult sizes from 22.0 cm to 32.0 cm in half-cm steps (21 rows): US Men 4–14, US Women 5.5–15.5, UK 3–13, EU 35–48.
- · Foot length in cm is the Mondopoint size and equals the Japanese / Chinese size. Always measure your foot length first — your "US 9" can land on different brand last lengths.
- · US sizes split by gender (US Women is 1.5 above US Men for the same foot length). UK and EU sizes typically use one unisex scale.
- · EU follows the Paris-point system (1 point = 6.667 mm), which is not strictly linear in cm — brand rounding produces the ±0.5 size differences you see in size charts.
- · How to measure: in the evening, stand barefoot on paper with your heel against a wall, mark the longest toe and measure that distance — repeat for both feet and use the longer one, then add 5–10 mm of toe room when choosing a shoe.
- · Source: aggregated multi-brand chart (Nike, Adidas, Brannock device reference). Individual brands (New Balance, Vans, Converse, luxury) may sit ±0.5 off — always cross-check the brand's own size chart.
Frequently asked
Why does the same "US 9" feel different between Nike and New Balance?
A "US 9" doesn't map to one fixed shoe-last length — each brand builds on its own last with its own toe-room and shape, so the actual interior length can differ by 5 mm or more for the same labelled size. The reliable approach: (1) measure your foot length in cm; (2) cross-check that cm against the specific brand's size chart; (3) don't assume "I'm always a US 9".
What's the right way to measure my foot length in cm?
Measure in the evening (feet swell over the day, closer to how they'll sit inside a shoe), barefoot, standing on an A4 sheet with your heel against a wall. Draw a line at the tip of your longest toe (often the big or second toe), then measure from the wall to that line — that's your foot length. Measure both feet and take the longer one; pick a shoe ~5–10 mm longer than that for toe room.
Which size system do shops in Hong Kong typically use?
Depends on the brand. Japanese brands (ASICS, Mizuno, Onitsuka) usually dual-label JP cm + US. Western performance brands (Nike, Adidas, New Balance, Converse) print all four (US / UK / EU / cm) on the box. International luxury and fashion houses (Gucci, LV, Dior) lean on EU. Look for the cm number on the box — it's the least ambiguous and the one you can match directly against your measured foot length.
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