ASICS Size Converter & Sizing Guide
Find your perfect ASICS fit with our easy-to-use size converter. Convert between US, EU, UK, and CM sizing instantly and shop with confidence.
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ASICS Men's Size Chart
| US | UK | EU | CM |
|---|---|---|---|
| 4 | 3 | 36 | 22.5 |
| 4.5 | 3.5 | 37 | 23 |
| 5 | 4 | 37.5 | 23.5 |
| 5.5 | 4.5 | 38 | 24 |
| 6 | 5 | 39 | 24.5 |
| 6.5 | 5.5 | 39.5 | 25 |
| 7 | 6 | 40 | 25.25 |
| 7.5 | 6.5 | 40.5 | 25.5 |
| 8 | 7 | 41.5 | 26 |
| 8.5 | 7.5 | 42 | 26.5 |
| 9 | 8 | 42.5 | 27 |
| 9.5 | 8.5 | 43.5 | 27.5 |
| 10 | 9 | 44 | 28 |
| 10.5 | 9.5 | 44.5 | 28.25 |
| 11 | 10 | 45 | 28.5 |
| 11.5 | 10.5 | 46 | 29 |
| 12 | 11 | 46.5 | 29.5 |
| 12.5 | 11.5 | 47 | 30 |
| 13 | 12 | 48 | 30.5 |
| 13.5 | 12.5 | 48.5 | 30.75 |
| 14 | 13 | 49 | 31 |
| 14.5 | 13.5 | 49.5 | 31.5 |
ASICS Shoe Collections & Fit Insights
ASICS shoes are engineered with different technologies depending on your activity. Understanding collection-specific fit characteristics helps ensure optimal performance and comfort for every runner.
Quick Sizing Tips
True to Size for Most Models
ASICS running shoes generally fit true to size with excellent arch support
Measure in CM for Accuracy
Foot length in centimeters provides the most precise ASICS sizing
Running Shoes Need Space
Leave 0.5-1 cm at the front for natural foot expansion during activity
Multiple Width Options Available
ASICS offers B, D, 2E, 4E widths for perfect fit customization
Measure in the Evening
Feet swell during the day - measure when they're largest for accuracy
ASICS Collections by Category
Stability Running Shoes
ASICS GEL-KAYANO Series
Features: Premium stability trainer with GEL cushioning and Dynamic DuoMax support
Fit: Runs true to size; snug midfoot wrap. Best for medium-width feet
Best For: Overpronators or runners needing extra arch/ankle support
ASICS GT Series (GT-1000, GT-2000, GT-4000)
Features: Stability lineup with different levels of support
Fit: True to size, consistent across models
Best For: Mild to severe overpronators depending on model
Neutral Cushioning Running Shoes
ASICS GEL-NIMBUS Series
Features: Plush cushioning with FF Blast+ foam and GEL inserts
Fit: Runs slightly narrow; wide-footed runners may prefer half a size up or wide (2E/4E) versions
Best For: Neutral runners and long-distance comfort
ASICS GEL-CUMULUS Series
Features: Balanced cushioning, lighter than Nimbus, versatile daily trainer
Fit: True to size, slightly roomier toe box than Nimbus
Best For: Neutral runners seeking a versatile shoe
ASICS NOVABLAST Series
Features: Lightweight trainer with FF Blast+ foam, high energy return
Fit: Runs slightly long; many runners size down 0.5
Best For: Neutral runners who like a bouncy ride
Racing & Performance Shoes
ASICS METASPEED Series
Features: Carbon-plate super shoes (Metaspeed Sky & Edge) designed for elite racing
Fit: Performance-oriented snug fit; choose true to size for racing feel, or half size up for comfort
Best For: Competitive runners seeking maximum speed
Trail Running Shoes
ASICS GEL-SONOMA & TRABUCO Series
Features: Rugged outsole, rock protection, and trail stability
Fit: Generally true to size, but trail runners may size up for thicker socks
Best For: Off-road, hiking, and technical trails
Training & Lifestyle Shoes
ASICS GEL-QUANTUM & GEL-EXCITE Series
Features: Cushioning + streetwear style
Fit: Usually true to size, versatile for gym and casual wear
Best For: Fitness workouts, everyday sneakers
Understanding ASICS Widths
Special Sizing Considerations
NOVABLAST Series
Runs long - consider sizing down 0.5 for optimal fit
METASPEED Series
True to size for racing, half size up for training comfort
Trail Running Shoes
Consider sizing up for thicker trail socks
Wide Feet
Choose 2E or 4E width options, especially for GEL-NIMBUS
How ASICS GEL Technology Affects Fit
Understanding GEL cushioning helps optimize your shoe selection
Cushioning
GEL provides consistent, long-lasting cushioning
Support
Enhanced arch support affects overall fit feel
Durability
Maintains shape and comfort over extended use
ASICS Purchase Decision Guide
Before You Buy
- • Determine your running style (neutral, overpronation, underpronation)
- • Consider your primary activity (road running, trail, racing, training)
- • Assess your foot type (width, arch height, comfort preferences)
- • Choose the right collection for your needs and preferences
- • Measure your feet in the evening when they're largest
- • Check the return policy in case you need to exchange sizes
How to Accurately Measure Your Feet for the Best Fit
To ensure the most accurate shoe size conversion, understanding your precise foot measurement data is crucial. Please follow these simple steps:
Tip
It is recommended to measure your feet in the evening, as feet may swell slightly during the day due to heat and activity.