Gel-Quantum Size Guide: Fit, Width & Size Chart

Runs true to size

The ASICS Gel-Quantum 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 ASICS Gel-Quantum

For a 271 mm foot, ASICS Gel-Quantum fits true to size. Best fit: US 10 (likely US 9–11), UK 9, EU 41, 27 cm — confidence 50%.

Recommended size for a 271 mm foot on ASICS Gel-Quantum (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 Gel-Quantum run true to size?

Across our data the ASICS Gel-Quantum true to size. Start by checking your usual US size.

Gel-Quantum size conversion chart

Gel-Quantum 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
249.9mm 7.5 9 6.5 37 25
254.1mm 8 9.5 7 38 25.5
258.3mm 8.5 10 7.5 39 26
262.5mm 9 10.5 8 39 26.5
266.8mm 9.5 11 8.5 40 26.5
271mm 10 11.5 9 41 27
275.2mm 10.5 12 9.5 41 27.5
279.5mm 11 12.5 10 42 28
283.7mm 11.5 13 10.5 43 28.5
287.9mm 12 13.5 11 43 29
292.2mm 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.

Gel-Quantum 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

Neutral runner with snug heel cup and minimal drop. True to size for most; narrow midfoot on some versions.

Where this data comes from

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