Cloudrunner Size Guide: Fit, Width & Size Chart

Runs true to size

The On Cloudrunner true to size. Start by checking your usual US size. Available in standard (D) width only. Use the table below to convert your foot length in millimetres straight to US, UK, EU and CM sizes — the one measurement every system agrees on.

Best fit recommendation for On Cloudrunner

For a 270 mm foot, On Cloudrunner fits true to size. Best fit: US 10 (likely US 9–11), UK 9, EU 41, 27 cm — confidence 50%.

Recommended size for a 270 mm foot on On Cloudrunner (best fit + range, not a guarantee)
Best fit Likely range UK EU CM Confidence
US 10 US 9–11 9 41 27 50%

Evidence: 1 sources · no lab measurement in this record

See how we calculate for the methodology. Sizes vary by model and foot shape; this is an estimate, not a guarantee.

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Does the Cloudrunner run true to size?

Across our data the On Cloudrunner true to size. Start by checking your usual US size.

Cloudrunner size conversion chart

Cloudrunner sizes by foot length. US Men's, US Women's, UK, EU and CM. The highlighted row is the model's true-to-size anchor.
Foot length US Men US Women UK EU CM
248.9mm 7.5 9 6.5 37 25
253.1mm 8 9.5 7 38 25.5
257.3mm 8.5 10 7.5 39 25.5
261.5mm 9 10.5 8 39 26
265.8mm 9.5 11 8.5 40 26.5
270mm 10 11.5 9 41 27
274.2mm 10.5 12 9.5 41 27.5
278.5mm 11 12.5 10 42 28
282.7mm 11.5 13 10.5 42 28.5
286.9mm 12 13.5 11 43 28.5
291.2mm 12.5 14 11.5 44 29

EU sizes are always rounded to a whole size — treat the EU column as the closest honest match.

Cloudrunner width availability

Available in standard (D) width only.

Only the standard (D) width is offered, so very wide or very narrow feet may need to adjust length or choose a brand with more width grades.

Expert fit notes

Everyday trainer true to size with responsive CloudTec sole. Snug midfoot on narrow lasts.

Where this data comes from

Built from 1 source and 944 measurements. See how we calculate for how confidence is scored.