BRAND SIZE CALCULATOR
ASOS Size Guide & Calculator
Find your best ASOS size using your body measurements. Choose a product category, region and unit system to estimate your closest size.
Calculate your size
ASOS size calculator
This calculator is preselected to ASOS. Enter the measurements you know and we’ll compare them with available ASOS size chart data.
Choose what you’re shopping for
Brand, product and size label context.
Add your measurements
Your measurements are private and never saved.
Enter the measurements you know. More relevant measurements can improve your estimate.
See your best size
Enter your measurements to see your best size.
Add at least one relevant measurement. More measurements can improve your estimate.
Size recommendations are estimates, not guarantees. Always check the product size chart and return policy before buying. Clothing Size Calculator is independent and not affiliated with the listed brands unless stated otherwise.
How ASOS sizing works
The calculator compares your measurements with available ASOS size chart data for the selected product category and region. It then suggests the closest size and nearby alternatives.
Size recommendations are estimates because fit can vary by style, cut, fabric and product design. Always check the product page and return policy before buying.
Supported ASOS size categories
Use this ASOS size calculator for supported product types such as jeans, tops, shirts, dresses, jackets, trousers and shoes. Availability may vary by gender and region.
ASOS size calculator FAQ
Quick answers for using this independent ASOS size guide.
How do I estimate my ASOS size?
Measure the body areas that matter for the product you want to buy, then enter those measurements into the calculator. For jeans, use waist, hips and inseam. For tops, shirts and jackets, use bust or chest, waist and sleeve or shoulder measurements where available.
Is this an official ASOS size calculator?
No. Clothing Size Calculator is independent and is not affiliated with ASOS unless stated otherwise. Results are estimates based on available size chart data.
Can I convert ASOS sizes between UK, US and EU labels?
Where size labels are available, the calculator can compare UK, US, EU and international sizing systems.
Will this guarantee the right ASOS size?
No. Product cuts, fabrics and fit preferences can vary. Use the result as a guide and check the product’s size chart before buying.
Other brand size calculators
Switch to another brand calculator while keeping the same measurement-based workflow.
Zara Size Calculator
Estimate your Zara size using measurements and fit notes.
Open guide →H&M Size Calculator
Estimate your H&M size using measurements and fit notes.
Open guide →Uniqlo Size Calculator
Estimate your Uniqlo size using measurements and fit notes.
Open guide →Nike Size Calculator
Estimate your Nike size using measurements and fit notes.
Open guide →Adidas Size Calculator
Estimate your Adidas size using measurements and fit notes.
Open guide →Levi’s Size Calculator
Estimate your Levi’s size using measurements and fit notes.
Open guide →