Find your shoe size in any brand.
Convert your size across 150+ brands using official size charts — with smart, fit-based estimates for the rest.
165 official charts · 100% free · no signup
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Your size in Adidas
True to Size
US 12
12 US | UK 11.5 | EU 46 2/3 | CM 28.8
Width: Standard
Based on official size chart
Category
Athletic & Running
Fit profile
Runs Small
Primary unit
US
Method
Official chart
Directory
Your size across every brand
The same conversion, computed for every brand we track. Search or filter by category to narrow it down.
166 brands
5.11 Tactical
US 10.5
Width Standard
True to Size
Provisional chart
APL
US 10.5
Width Standard
True to Size
Provisional chart
Alden
US 10
Width D Width
Runs Large
Provisional chart
Aldo
US 12
Width Standard
Runs Small
Provisional chart
Alexander McQueen
US 9
Width Standard
Runs Large
Heuristic
Allbirds
US 11
Width Standard
Runs Small
Provisional chart
Allen Edmonds
US 12
Width D Width
Runs Large
Provisional chart
Altra
US 10.5
Width Standard
Runs Small
Provisional chart
Arc'teryx
US 10.5
Width Standard
True to Size
Provisional chart
Ariat
US 12
Width Standard
Runs Large
Provisional chart
Asics
US 11
Width Standard
Runs Small
Provisional chart
Asolo
EU 43 2/3
Width Standard
Runs Large
Provisional chart
Methodology
How the conversion works
Every size is expressed as foot length in centimeters — the universal intermediary — so conversions never go brand-to-brand directly.
Start from what you know
Your size in a brand you own, or your Brannock device measurement. Everything is converted to foot length in centimeters.
Official charts first
For brands with published size charts we interpolate real cm-to-size rows. No formulas, no guessing.
Fit-based estimates otherwise
Brands without chart data use a fit offset (runs small/large) against the same cm baseline, so every conversion stays comparable.
165 brands currently use official chart data.
Feedback
Help us improve the data
Wrong size recommendation? Missing brand? Real-world fit notes make the converter better for everyone.
About this free shoe size converter
FindShoeSize.com is a totally free tool that compares shoe sizes across 150+ athletic, casual, work boot, and dress brands. We use official centimeter data from brand size charts where available, and calibrated offset estimates for all others. Convert from any brand — whether you're switching from Nike to New Balance, Converse to Vans, or Red Wing to Thursday Boot Co. — completely free with no signup required.
Athletic & Running
Nike, Adidas, Asics, New Balance, Brooks, Hoka One One, On Running, Saucony, Salomon, Altra, Mizuno, NOBULL, Reebok, Puma, and more.
Casual & Lifestyle
Converse, Vans, Birkenstock, Skechers, Allbirds, UGG, Hey Dude, Crocs, Common Projects, Veja, Golden Goose, and more.
Work & Heritage Boots
Red Wing Heritage, Timberland, Dr. Martens, Blundstone, Clarks, Thursday Boot Co., Danner, Wolverine, Ariat, and more.
Dress & Smart Casual
Allen Edmonds, Cole Haan, Ecco, Johnston & Murphy, Church's, Crockett & Jones, Ferragamo, Steve Madden, and more.
FindShoeSize.com — free shoe size conversion across 150+ brands. Official charts where available, fit-based estimates everywhere else.