adidas Size Guide
adidas footwear and apparel is engineered for performance across sport, training, and everyday wear. The brand uses international sizing standards (US, UK, EU, and Mondopoint for boots) and is designed to fit true to size when you select your usual adidas size. adidas has maintained consistent sizing across its range, so if you have owned adidas before, your previous size remains reliable. The brand caters to men, women, and children with distinct sizing progressions for each category.
How to Measure
- Remove the insole from a well-fitting pair of trainers or shoes you already own.
- Place the insole on a flat surface and use a steel measuring tape or rigid ruler.
- Measure from the extreme tip of the toe to the extreme tip of the heel in centimetres.
- Note that your measurement will always be exact to the nearest 0.5 cm—never an intermediate value like 28.8 cm.
- Cross-reference this foot length measurement in the appropriate size conversion table below to find your adidas size across all sizing systems (UK, US Men's, US Women's, EU).
- If you are between sizes, round up to the next half-size for a more comfortable fit, particularly in performance footwear where snugness is necessary.
Footwear Size Chart
| Foot Length (cm) | UK | US Men's | US Women's | EU |
|---|---|---|---|---|
| 22.1 | 3.5 | 4 | 5 | 36 |
| 22.5 | 4 | 4.5 | 5.5 | 36⅔ |
| 22.9 | 4.5 | 5 | 6 | 37⅓ |
| 23.3 | 5 | 5.5 | 6.5 | 38 |
| 23.8 | 5.5 | 6 | 7 | 38⅔ |
| 24.2 | 6 | 6.5 | 7.5 | 39⅓ |
| 24.6 | 6.5 | 7 | 8 | 40 |
| 25.0 | 7 | 7.5 | 8.5 | 40⅔ |
| 25.5 | 7.5 | 8 | 9 | 41⅓ |
| 25.9 | 8 | 8.5 | 9.5 | 42 |
| 26.3 | 8.5 | 9 | 10 | 42⅔ |
| 26.7 | 9 | 9.5 | 10.5 | 43⅓ |
| 27.1 | 9.5 | 10 | 11 | 44 |
| 27.6 | 10 | 10.5 | 11.5 | 44⅔ |
| 28.0 | 10.5 | 11 | 12 | 45⅓ |
| 28.4 | 11 | 11.5 | 12.5 | 46 |
| 28.8 | 11.5 | 12 | 13 | 46⅔ |
| 29.3 | 12 | 12.5 | 13.5 | 47⅓ |
| 29.7 | 12.5 | 13 | 14 | 48 |
| 30.1 | 13 | 13.5 | 14.5 | 48⅔ |
| 30.5 | 13.5 | 14 | 15 | 49⅓ |
| 31.0 | 14 | 14.5 | 15.5 | 50 |
| 31.4 | 14.5 | 15 | — | 50⅔ |
| 31.8 | 15 | 16 | — | 51⅓ |
| 32.6 | 16 | 17 | — | 52⅔ |
| 33.5 | 17 | 18 | — | 53⅓ |
| 34.3 | 18 | 19 | — | 54⅔ |
| 35.2 | 19 | 20 | — | 55⅔ |
Product-Specific Guidance
Running Shoes
adidas running shoes are engineered for neutral or supportive performance depending on the model line. Running trainers are designed to fit snugly around the midfoot and heel to prevent slippage during stride, whilst allowing a thumb's width of space at the toe. Use the foot length measurement method above for precision, as running shoe fit is critical for injury prevention and comfort over long distances.
Training & Gym Shoes
Cross-training and gym shoes from adidas feature supportive midsoles and reinforced toeboxes. These trainers should fit true to your measured size with a secure heel cup and a neutral feel underfoot. If you prefer a snugger fit for weightlifting or agility work, your standard size is recommended; do not size down.
Football (Soccer) Boots
adidas football boots are notoriously tight and often require sizing up by half a size from your standard trainers size to allow for thin performance socks and a direct ball-touching fit. Always consult the specific model's fit guide, as some lightweight boots run narrower than classic models. Trying on in-store is strongly recommended for football footwear.
Snowboard Boots
Snowboard boots are sized using the Mondopoint system (measured in centimetres), which represents the internal liner length. The size table above provides Mondopoint-to-standard-sizing conversions. Measure your insole length carefully; snowboard boot fit is critical for ankle support and control. If between sizes, choose the larger size for comfort and to accommodate thick thermal socks.
Casual & Lifestyle Trainers
adidas lifestyle and casual trainers are typically designed for a relaxed, everyday fit. Use your standard measured size. These shoes often have roomier toeboxes and more forgiving padding than performance lines, so they accommodate a wider range of foot shapes.
Sizing Tips
- US to UK conversion differs from other brands: adidas uses a half-size difference between US and UK sizing (e.g., US 10 Men's = UK 9.5), whereas most American brands use a full-size difference. Always verify your conversion carefully.
- Men's and Women's sizes are not equivalent: adidas US 10 Men's is adidas US 11 Women's. When converting between genders, add one full size to women's sizing to find the men's equivalent.
- UK sizing may require adjustment: Some sources indicate that adidas UK sizing runs approximately half a size too small compared to true foot length. If you prefer a UK size 8, consider ordering UK 8.5 for optimal fit.
- EU sizing for larger sizes: For adidas EU sizes 36 and larger, the sizing is reported to run approximately 0.7 of a size too small in conversion from US. If your US size converts to EU 43.3, order EU 44 for comfort.
- Always measure your actual foot length: Do not rely solely on previous shoe size labels. Remove the insole, measure heel to toe in centimetres, and cross-reference the table. This single step prevents most sizing errors.
- Account for sock thickness in performance footwear: Running shoes, football boots, and snowboard boots should be fitted wearing the socks you intend to use during activity. Thin athletic socks require less room than thermal or padded socks.
- Width and toebox fit varies by model: adidas produces shoes in standard, narrow (Narrow), and wide (Wide) fittings depending on the line. Check the product description or retailer notes for your chosen model before purchasing, particularly if you have known width preferences.
- Consistency across adidas product ranges: If you already own adidas trainers that fit well, purchase the same size in new adidas shoes. The brand maintains consistent sizing across its footwear range, so your previous size remains reliable.