ASICS Shoe Size Guide

ASICS fits true to size for most buyers: 75% of wearers report a true fit, 10% find it small and 15% find it large. 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. Wide-foot widths are offered, so most foot shapes can find a fit.

Best fit recommendation for ASICS

For a 276 mm foot, ASICS fits true to size. Best fit: US 10.5 (likely US 9.5–11.5), UK 9.5, EU 41, 27.5 cm — confidence 50%.

Recommended size for a 276 mm foot on ASICS (best fit + range, not a guarantee)
Best fit Likely range UK EU CM Confidence
US 10.5 US 9.5–11.5 9.5 41 27.5 50%

Evidence: 2 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.

Save your ASICS size passport

Save your foot length and usual US size here, then reuse it on comparisons and other brand guides.

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ASICS size conversion table

ASICS sizes by foot length (240–300mm). US Men's, US Women's, UK, EU and CM.
Foot length US Men US Women UK EU CM
240mm 6.5 8 5.5 36 24
250mm 7.5 9 6.5 38 25
260mm 8.5 10 7.5 39 26
270mm 10 11.5 9 41 27
280mm 11 12.5 10 42 28
290mm 12.5 14 11.5 44 29
300mm 13.5 15 12.5 45 30

EU sizes are always rounded to a whole size — there is no exact half-size equivalent, so treat the EU column as the closest honest match.

Do ASICS run true to size?

ASICS running shoes usually fit true to size with a secure heel; wide feet should look for 2E/4E widths.

How ASICS fits

Across our data ASICS true to size. Of wearers, 10% report it runs small, 75% true to size, and 15% large.

ASICS reported-fit distribution
Runs small True to size Runs large
10% 75% 15%

ASICS width & wide feet

This brand offers widths beyond standard D. ASICS wide-fit guide →

Where this data comes from

Built from 1 ASICS record . See how we calculate for how confidence is scored.

Compare ASICS sizing

Switching brands? Compare the same foot length against other popular lasts.

Model-specific fit verdicts — these run differently from the brand average, so check the exact silhouette you're buying.

How did ASICS fit you?

Anonymous - no account needed, no email required. Your answer feeds our fit data and helps the next buyer get the right size.

This shoe felt: