Asics vs Crocs
Detailed size comparison between Asics and Crocs. See side-by-side charts to find out which brand runs bigger or smaller.
💡Quick Answer
Asics Usually runs true to size. Running shoes are well-regarded for consistent sizing., while Crocs Crocs runs large - size down. Compare the CM measurements in the charts below for the most accurate fit comparison between brands.
Men's Sizing Comparison
Asics
| US | UK | EU | CM |
|---|---|---|---|
| 3.5 | 3 | 36 | 22 |
| 4 | 3.5 | 36.5 | 22 |
| 4.5 | 4 | 37 | 22.5 |
| 5 | 4.5 | 37.5 | 23 |
| 5.5 | 5 | 38 | 23.5 |
| 6 | 5 | 38 | 23.7 |
| 6.5 | 5.5 | 38 | 24.1 |
| 7 | 6 | 39 | 24.6 |
| 7.5 | 6.5 | 39.5 | 25 |
| 8 | 7 | 40 | 25.4 |
| 8.5 | 7.5 | 40.5 | 25.8 |
| 9 | 8 | 42 | 26.2 |
| 9.5 | 8.5 | 42 | 26.7 |
| 10 | 9 | 43 | 27.1 |
| 10.5 | 9.5 | 43.5 | 27.5 |
| 11 | 10 | 44 | 27.9 |
| 11.5 | 10.5 | 44.5 | 28.4 |
| 12 | 11 | 45 | 28.8 |
| 12.5 | 11.5 | 46 | 29.2 |
| 13 | 12 | 47 | 29.6 |
| 13.5 | 12.5 | 47 | 30.1 |
| 14 | 13 | 48 | 30.5 |
| 14.5 | 13.5 | 48.5 | 30.9 |
| 15 | 14 | 49 | 31.3 |
| 15.5 | 14.5 | 49.5 | 31.8 |
| 16 | 15 | 51 | 32.2 |
Usually runs true to size. Running shoes are well-regarded for consistent sizing.
Crocs
| US | UK | EU | CM |
|---|---|---|---|
| 3.5 | 3 | 36 | 22 |
| 4 | 3.5 | 36.5 | 22 |
| 4.5 | 4 | 37 | 22.5 |
| 5 | 4.5 | 37.5 | 23 |
| 5.5 | 5 | 38 | 23.5 |
| 6 | 5 | 38 | 23.7 |
| 6.5 | 5.5 | 38 | 24.1 |
| 7 | 6 | 39 | 24.6 |
| 7.5 | 6.5 | 39.5 | 25 |
| 8 | 7 | 40 | 25.4 |
| 8.5 | 7.5 | 40.5 | 25.8 |
| 9 | 8 | 42 | 26.2 |
| 9.5 | 8.5 | 42 | 26.7 |
| 10 | 9 | 43 | 27.1 |
| 10.5 | 9.5 | 43.5 | 27.5 |
| 11 | 10 | 44 | 27.9 |
| 11.5 | 10.5 | 44.5 | 28.4 |
| 12 | 11 | 45 | 28.8 |
| 12.5 | 11.5 | 46 | 29.2 |
| 13 | 12 | 47 | 29.6 |
| 13.5 | 12.5 | 47 | 30.1 |
| 14 | 13 | 48 | 30.5 |
| 14.5 | 13.5 | 48.5 | 30.9 |
| 15 | 14 | 49 | 31.3 |
| 15.5 | 14.5 | 49.5 | 31.8 |
| 16 | 15 | 51 | 32.2 |
Crocs runs large - size down
Women's Sizing Comparison
Asics
| US | UK | EU | CM |
|---|---|---|---|
| 3.5 | 2.5 | 35 | 21.5 |
| 4 | 3 | 35 | 22 |
| 4.5 | 3.5 | 35 | 22.4 |
| 5 | 3 | 35 | 22 |
| 5.5 | 3.5 | 35.5 | 22.4 |
| 6 | 4 | 36.5 | 22.9 |
| 6.5 | 4.5 | 37 | 23.3 |
| 7 | 5 | 37.5 | 23.7 |
| 7.5 | 5.5 | 38 | 24.1 |
| 8 | 6 | 39 | 24.6 |
| 8.5 | 6.5 | 39.5 | 25 |
| 9 | 7 | 40 | 25.4 |
| 9.5 | 7.5 | 40.5 | 25.8 |
| 10 | 8 | 41.5 | 26.2 |
| 10.5 | 8.5 | 42 | 26.7 |
| 11 | 9 | 42.5 | 27.1 |
| 11.5 | 9.5 | 43.5 | 27.5 |
| 12 | 10 | 44 | 27.9 |
| 12.5 | 10.5 | 44.5 | 28.4 |
| 13 | 11 | 45 | 28.8 |
| 13.5 | 11.5 | 46 | 29.2 |
| 14 | 12 | 46.5 | 29.6 |
| 14.5 | 12.5 | 47 | 30.1 |
| 15 | 13 | 47.5 | 30.5 |
Crocs
| US | UK | EU | CM |
|---|---|---|---|
| 3.5 | 2.5 | 35 | 21.5 |
| 4 | 3 | 35 | 22 |
| 4.5 | 3.5 | 35 | 22.4 |
| 5 | 3 | 35 | 22 |
| 5.5 | 3.5 | 35.5 | 22.4 |
| 6 | 4 | 36.5 | 22.9 |
| 6.5 | 4.5 | 37 | 23.3 |
| 7 | 5 | 37.5 | 23.7 |
| 7.5 | 5.5 | 38 | 24.1 |
| 8 | 6 | 39 | 24.6 |
| 8.5 | 6.5 | 39.5 | 25 |
| 9 | 7 | 40 | 25.4 |
| 9.5 | 7.5 | 40.5 | 25.8 |
| 10 | 8 | 41.5 | 26.2 |
| 10.5 | 8.5 | 42 | 26.7 |
| 11 | 9 | 42.5 | 27.1 |
| 11.5 | 9.5 | 43.5 | 27.5 |
| 12 | 10 | 44 | 27.9 |
| 12.5 | 10.5 | 44.5 | 28.4 |
| 13 | 11 | 45 | 28.8 |
| 13.5 | 11.5 | 46 | 29.2 |
| 14 | 12 | 46.5 | 29.6 |
| 14.5 | 12.5 | 47 | 30.1 |
| 15 | 13 | 47.5 | 30.5 |
Kids/Youth Sizing Comparison
Asics
| US | UK | EU | CM |
|---|---|---|---|
| 1 | 0.5 | 16 | 10.5 |
| 1.5 | 1 | 17 | 11 |
| 2 | 1.5 | 18 | 11.5 |
| 2.5 | 2 | 19 | 12 |
| 3 | 2.5 | 20 | 12.5 |
| 3.5 | 3 | 21 | 13 |
| 4 | 3.5 | 22 | 13.5 |
| 4.5 | 4 | 23 | 14 |
| 5 | 4.5 | 24 | 14.5 |
| 5.5 | 5 | 25 | 15 |
| 6 | 5.5 | 26 | 15.5 |
| 6.5 | 6 | 27 | 16 |
| 7 | 6.5 | 28 | 16.5 |
| 7.5 | 7 | 29 | 17 |
| 8 | 7.5 | 30 | 17.5 |
| 8.5 | 8 | 31 | 18 |
| 9 | 8.5 | 32 | 18.5 |
| 9.5 | 9 | 33 | 19 |
| 10 | 9.5 | 34 | 19.5 |
| 10.5 | 10 | 35 | 20 |
| 11 | 10.5 | 36 | 20.5 |
| 11.5 | 11 | 37 | 21 |
| 12 | 11.5 | 38 | 21.5 |
| 12.5 | 12 | 39 | 22 |
| 13 | 12.5 | 40 | 22.5 |
| 13.5 | 13 | 41 | 23 |
| 1 | 12.5 | 32 | 19.5 |
| 1.5 | 13 | 32 | 19.9 |
| 2 | 13.5 | 32.5 | 20.3 |
| 2.5 | 1 | 33 | 20.7 |
| 3 | 2 | 34 | 21.2 |
| 3.5 | 2.5 | 34.5 | 21.6 |
| 4 | 3 | 35 | 22 |
| 4.5 | 3.5 | 35.5 | 22.4 |
| 5 | 4 | 36.5 | 22.9 |
| 5.5 | 4.5 | 37 | 23.3 |
| 6 | 5 | 37.5 | 23.7 |
Crocs
| US | UK | EU | CM |
|---|---|---|---|
| 1 | 0.5 | 16 | 10.5 |
| 1.5 | 1 | 17 | 11 |
| 2 | 1.5 | 18 | 11.5 |
| 2.5 | 2 | 19 | 12 |
| 3 | 2.5 | 20 | 12.5 |
| 3.5 | 3 | 21 | 13 |
| 4 | 3.5 | 22 | 13.5 |
| 4.5 | 4 | 23 | 14 |
| 5 | 4.5 | 24 | 14.5 |
| 5.5 | 5 | 25 | 15 |
| 6 | 5.5 | 26 | 15.5 |
| 6.5 | 6 | 27 | 16 |
| 7 | 6.5 | 28 | 16.5 |
| 7.5 | 7 | 29 | 17 |
| 8 | 7.5 | 30 | 17.5 |
| 8.5 | 8 | 31 | 18 |
| 9 | 8.5 | 32 | 18.5 |
| 9.5 | 9 | 33 | 19 |
| 10 | 9.5 | 34 | 19.5 |
| 10.5 | 10 | 35 | 20 |
| 11 | 10.5 | 36 | 20.5 |
| 11.5 | 11 | 37 | 21 |
| 12 | 11.5 | 38 | 21.5 |
| 12.5 | 12 | 39 | 22 |
| 13 | 12.5 | 40 | 22.5 |
| 13.5 | 13 | 41 | 23 |
| 1 | 12.5 | 32 | 19.5 |
| 1.5 | 13 | 32 | 19.9 |
| 2 | 13.5 | 32.5 | 20.3 |
| 2.5 | 1 | 33 | 20.7 |
| 3 | 2 | 34 | 21.2 |
| 3.5 | 2.5 | 34.5 | 21.6 |
| 4 | 3 | 35 | 22 |
| 4.5 | 3.5 | 35.5 | 22.4 |
| 5 | 4 | 36.5 | 22.9 |
| 5.5 | 4.5 | 37 | 23.3 |
| 6 | 5 | 37.5 | 23.7 |
Verdict
When comparing Asics to Crocs, pay attention to the CM/JP measurements as they are the most accurate way to compare fit across brands.
Asics: Usually runs true to size. Running shoes are well-regarded for consistent sizing.
Crocs: Crocs runs large - size down
Frequently Asked Questions
Which runs bigger, Asics or Crocs?
Asics Usually runs true to size. Running shoes are well-regarded for consistent sizing., while Crocs Crocs runs large - size down. Compare the CM measurements in the charts above for the most accurate fit comparison.
Are Asics and Crocs sizes the same?
While both brands use standard sizing systems (US, UK, EU), the actual fit can vary. Asics Usually runs true to size. Running shoes are well-regarded for consistent sizing., and Crocs Crocs runs large - size down. Always check the CM measurements for accurate comparison.
Should I buy the same size in Asics and Crocs?
Not necessarily. Even if you wear the same numerical size, the fit may differ between brands. Use the CM/foot length measurement from our charts to find your true size in each brand.
How do I convert my Asics size to Crocs?
Find your Asics size in the chart above, note the CM measurement, then find that same CM measurement in the Crocs chart. This ensures the most accurate size match between brands.
Explore More
Explore related conversion tools to find exactly what you need