Running Shoe Size Chart
Quick reference for converting between US, UK, EU, Australian, and centimetre sizing for running shoes. Scroll down for brand-specific notes and instructions for measuring your foot accurately.
Men's Running Shoe Size Chart
| US | UK | EU | AU | CM |
|---|---|---|---|---|
| 6 | 5.5 | 39 | 6 | 23.5 |
| 6.5 | 6 | 39.5 | 6.5 | 24.1 |
| 7 | 6.5 | 40 | 7 | 24.4 |
| 7.5 | 7 | 40.5 | 7.5 | 25.1 |
| 8 | 7.5 | 41 | 8 | 25.4 |
| 8.5 | 8 | 42 | 8.5 | 26.0 |
| 9 | 8.5 | 42.5 | 9 | 26.7 |
| 9.5 | 9 | 43 | 9.5 | 27.0 |
| 10 | 9.5 | 44 | 10 | 27.6 |
| 10.5 | 10 | 44.5 | 10.5 | 28.3 |
| 11 | 10.5 | 45 | 11 | 28.6 |
| 11.5 | 11 | 45.5 | 11.5 | 29.2 |
| 12 | 11.5 | 46 | 12 | 29.8 |
| 13 | 12.5 | 47 | 13 | 30.5 |
| 14 | 13 | 48 | 14 | 31.1 |
| 15 | 14 | 49 | 15 | 31.8 |
Women's Running Shoe Size Chart
| US | UK | EU | AU | CM |
|---|---|---|---|---|
| 5 | 3 | 35.5 | 5 | 21.6 |
| 5.5 | 3.5 | 36 | 5.5 | 22.2 |
| 6 | 4 | 36.5 | 6 | 22.9 |
| 6.5 | 4.5 | 37 | 6.5 | 23.5 |
| 7 | 5 | 37.5 | 7 | 24.1 |
| 7.5 | 5.5 | 38 | 7.5 | 24.4 |
| 8 | 6 | 38.5 | 8 | 25.1 |
| 8.5 | 6.5 | 39 | 8.5 | 25.4 |
| 9 | 7 | 40 | 9 | 26.0 |
| 9.5 | 7.5 | 40.5 | 9.5 | 26.7 |
| 10 | 8 | 41 | 10 | 27.0 |
| 10.5 | 8.5 | 42 | 10.5 | 27.6 |
| 11 | 9 | 42.5 | 11 | 28.3 |
| 12 | 10 | 43 | 12 | 29.2 |
| 13 | 11 | 44 | 13 | 30.2 |
How to Convert Between Sizing Systems
The standard conversion rules for running shoes:
- US men's to UK: subtract 0.5. A US men's 10 = UK 9.5.
- US women's to UK: subtract 2. A US women's 9 = UK 7.
- US men's to EU: add approximately 33–34. A US 10 is roughly EU 44.
- Women's US to men's US: subtract 1.5. Women's US 9 = men's US 7.5.
- Australian sizing: men's AU matches US. Women's AU generally matches US in most running brands.
Important caveat: these are approximate conversions. EU sizing in particular varies between brands — some brands use 44 and others 44.5 for the same US 10. Always check the specific brand's size chart rather than relying on conversion rules alone.
Brand Sizing Notes
These notes reflect general industry knowledge about how each brand's sizing aligns with standard US sizing. For model-specific community reports, use the RunSized tool.
Generally aligns with US sizing, but varies by model. Check individual model pages — the Clifton, Bondi, and Speedgoat all fit differently.
Consistent with standard US sizing across the range. One of the more reliable brands for size-to-size consistency.
Generally follows US sizing in everyday trainers. Racing shoes (Vaporfly, Alphafly) tend to run short — most runners size up a full size in these.
True to US sizing. Excellent width options — most key models available from narrow (B) through extra-wide (4E).
True to US sizing, with a narrower last than some competitors. Check wide variants (2E) if you have a broader forefoot.
True to US sizing. The Endorphin line runs slightly snug in width.
True to US sizing in length, but runs on a narrow last. Wide-footed runners often need to try before buying.
Generally true to US sizing in the everyday range. The Adizero racing line can run slightly long.
Use the RunSized tool to check community reports for your specific shoe before you order.
How to Measure Your Foot
The most accurate way to measure your foot for running shoes:
- Measure at the end of the day. Your feet are at their largest after a day of standing and walking — this is closest to how they will feel mid-run.
- Stand on a piece of paper. Weight-bearing measurement is more accurate than sitting. Your foot spreads slightly when you stand.
- Trace around your foot. Hold the pencil vertically (not at an angle) and trace both feet. Feet are often different sizes — fit the larger one.
- Measure heel to longest toe. This is your foot length in centimetres. Use the tables above to find your size, or compare directly to the brand's chart.
- Alternatively, use a Brannock device. Running specialty stores have these — the metal foot-measuring tool measures both length and arch length simultaneously. Worth doing if you have not been measured recently.
Once you have your measurement, remember that running shoes generally benefit from half a size of extra space — your feet swell during runs and your toes need room to splay.
Finding Your Size with RunSized
Size charts give you a starting point — but they do not tell you how a specific shoe fits in practice. RunSized collects community reports from runners who have already bought the shoe you are considering. Enter the shoe you know fits and get real data on how the shoe you want to buy actually runs.
Use the RunSized tool to check community reports for your specific shoe.
Find your size in any running shoeFrequently Asked Questions
What is my EU shoe size if I wear US 10 men's?
A US men's 10 is approximately EU 44. Note that EU sizing varies slightly between brands — some brands use 44, others 44.5 for the same US 10. Always check the specific brand's size chart for confirmation.
How do I convert women's US shoe size to men's?
Women's US sizes typically run 1.5 sizes larger than men's. A women's US 9 is approximately a men's US 7.5. So to convert from women's to men's, subtract 1.5 from the women's US size.
Are Australian shoe sizes the same as US sizes?
For men's shoes, Australian sizes match US sizes exactly. For women's shoes, Australian sizing typically aligns with US sizing as well in most running shoe brands. However, always check the brand's own chart as there can be exceptions.
Do running shoe size charts differ from street shoe charts?
The conversion tables are the same — a EU 44 is a EU 44 in both running shoes and casual shoes. The difference is that runners commonly size up half a size to account for foot swelling during runs. So if your street shoe is a US 10, your running shoe might be a 10.5, even though the size chart conversion is the same.