Shoe size lookup
Pick men’s or women’s and a US size to see the full row: UK, EU, and foot length in cm.
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A US men’s 9 is a UK 8.5, EU 42, fitting a 26.0 cm foot. A 26.0 cm foot takes a men’s US 9 or a women’s US 10.5, and a women’s US 8 is a men’s US 6.5. Look up any size below, find your size from a foot measurement, or convert between men’s and women’s — then print the full chart.
Pick men’s or women’s and a US size to see the full row: UK, EU, and foot length in cm.
Measure your foot in centimeters (evening, standing, heel to longest toe) and get the nearest men’s and women’s US sizes — rounded up so the insole clears your foot.
Convert between the two US scales using the industry’s 1.5-size rule, checked against the chart for an exact match wherever the tables agree.
Shoe size = foot length + wiggle room, translated through one of four scales. US, UK, and EU numbers are just different labels for the same foot length in centimeters. A 26.0 cm foot is a US men’s 9, a UK 8.5, and an EU 42. The lookup above reads any row of the chart; the finder rounds your measurement up to the next charted size; the converter jumps between the men’s and women’s US scales.
Lookup: US men’s 9 → the chart row reads UK 8.5, EU 42, 26.0 cm. Same row as a US women’s 10.5 — because the women’s 10 is 25.9 cm (a hair short) and 10.5 is 26.2 cm (the next available), the industry’s 1.5-size shorthand lands on 10.5.
Foot-length finder: a 26.0 cm foot rounds up to men’s US 9 (26.0 cm row exactly) and women’s US 10.5 (26.2 cm is the first row at or above 26.0). Rounding up is deliberate — toes need clearance, and half a size of extra room beats blisters.
Men’s–women’s converter: women’s US 8 (24.1 cm) matches the men’s chart row at 24.1 cm exactly: men’s US 6.5 — an exact chart match, no rule needed. Where the tables don’t share a row, the converter falls back to the ±1.5 rule (men’s 9 + 1.5 = women’s 10.5).
Both charts in full, men’s and women’s, US to UK, EU, and foot length. Use your browser’s print function for a hard copy — the tables are print-styled.
| US | UK | EU | Foot (cm) |
|---|---|---|---|
| 6 | 5.5 | 39 | 23.5 |
| 6.5 | 6 | 39 | 24.1 |
| 7 | 6.5 | 40 | 24.4 |
| 7.5 | 7 | 40-41 | 24.8 |
| 8 | 7.5 | 41 | 25.4 |
| 8.5 | 8 | 41-42 | 25.7 |
| 9 | 8.5 | 42 | 26.0 |
| 9.5 | 9 | 42-43 | 26.7 |
| 10 | 9.5 | 43 | 27.0 |
| 10.5 | 10 | 43-44 | 27.3 |
| 11 | 10.5 | 44 | 27.9 |
| 11.5 | 11 | 44-45 | 28.3 |
| 12 | 11.5 | 45 | 28.6 |
| 13 | 12.5 | 46 | 29.4 |
| 14 | 13.5 | 47 | 30.2 |
| 15 | 14.5 | 48 | 31.0 |
| 16 | 15.5 | 49 | 31.8 |
| US | UK | EU | Foot (cm) |
|---|---|---|---|
| 4 | 2 | 35 | 20.8 |
| 4.5 | 2.5 | 35 | 21.3 |
| 5 | 3 | 35-36 | 21.6 |
| 5.5 | 3.5 | 36 | 22.2 |
| 6 | 4 | 36-37 | 22.5 |
| 6.5 | 4.5 | 37 | 23.0 |
| 7 | 5 | 37-38 | 23.5 |
| 7.5 | 5.5 | 38 | 23.8 |
| 8 | 6 | 38-39 | 24.1 |
| 8.5 | 6.5 | 39 | 24.6 |
| 9 | 7 | 39-40 | 25.1 |
| 9.5 | 7.5 | 40 | 25.4 |
| 10 | 8 | 40-41 | 25.9 |
| 10.5 | 8.5 | 41 | 26.2 |
| 11 | 9 | 41-42 | 26.7 |
| 11.5 | 9.5 | 42 | 27.1 |
| 12 | 10 | 42-43 | 27.6 |
| Output | Formula | What it means |
|---|---|---|
| Chart row | direct table lookup by US size and gender | US men’s 9 → UK 8.5, EU 42, 26.0 cm — every scale’s label for the same foot. |
| Size from foot length | first charted row with cm ≥ your measurement (rounds up) | 26.0 cm → men’s 9 / women’s 10.5 — rounded up so the insole clears your foot. |
| Men’s–women’s conversion | exact cm-row match, else the ±1.5-size rule | Women’s 8 → men’s 6.5 (exact 24.1 cm match); men’s 9 → women’s 10.5 (1.5 rule). |
These are consensus conversions assembled from multiple published size charts — but sizes vary by brand, sometimes by a full half size. Athletic brands tend to run small, dress brands true, and European brands use the EU number as the master. Measure in the evening: feet swell up to half a size during the day, so a morning measurement undersizes you. The ±1.5 rule (women’s = men’s + 1.5) is the industry shorthand where the charts disagree — close, but the exact row match is truer. Width (narrow/regular/wide) is not covered here; two feet the same length can need different widths. When between sizes, go up.
Bright Side Kit. "Shoe Size Conversion Chart." https://brightoolbox.com/shoe-size-chart/ Accessed October 23, 2026.Because both fit the same 26.0 cm foot. On the women’s chart, the 10 is 25.9 cm (a hair short) and the 10.5 is 26.2 cm (the next available) — and the industry’s ±1.5-size rule (men’s 9 + 1.5 = women’s 10.5) lands on the same answer.
In men’s sizes, yes — UK = US − 0.5 is the convention (US men’s 9 = UK 8.5). In women’s sizes the gap is bigger: US women’s 9 = UK 7. The two US scales are different systems wearing the same number.
Stand on a sheet of paper in the evening, trace around your foot, and measure heel to longest toe in centimeters. Use the longer foot. Type that number into the finder above — it rounds up to the next charted size.
Yes — up to half a size between brands on the same nominal size. Athletic shoes often run small, EU brands run truest to the EU number. That is why the centimeter column is the honest one: trust the cm, not the label.
About 3–4 mm of insole length — the EU scale steps every two-thirds of a centimeter. Some charts collapse half-steps into ranges (like 42-43); this chart shows those ranges where the consensus does.
Yes. A shoe that is half a size too big laces down fine; a shoe half a size too small punishes every step. The foot-length finder on this page already rounds up for exactly this reason.
Yes — kids’ US sizes are a separate scale (and they overlap adult numbers confusingly). This chart covers adult men’s and women’s only; a kids’ chart is on the roadmap.