Korean Size Converter

Korea sizes shoes in millimeters and clothes in numbers like 95/100 or 55/66. Convert from your usual size — or better, measure yourself for the accurate answer.

👟 Shoes → Korean mm

For

Your system

Your size

⚠️ Size-label conversion is always approximate — brands cut differently. If your shoes sometimes feel tight, use the foot-measuring tab instead: mm IS the Korean system.

Korean stores stock 5 mm steps. Between sizes? Go up — Korean sneakers often run slightly narrow. Socks are one-size and cheap street souvenirs, no conversion needed 🧦

👕 Clothing → Korean sizes

What are you buying?

Your size

International	Korea (men/unisex)	Korea (women, traditional)
XS	85	44
S	90	55
M	95	66
L	100	77
XL	105	88
XXL	110	—

🛍️ Where to actually shop and how to get 10% back: see the shopping guide and tax refund guide.

Reading Korean size labels

Korean shops use two numbering systems that look nothing like S/M/L, and both are still everywhere despite an official move to letter sizes in 1999.

Women's clothing: 44, 55, 66, 77, 88, 99

This scale dates from 1981 and is anchored on 55, drafted for someone about 155 cm tall with an 85 cm bust. Each step up adds roughly 5 cm of height and 3 cm of bust. So 44 is the smallest commonly stocked size, 66 is a middle size, and 77 upward is where most Western M/L shoppers land.

As a rough bridge: Korean 55 ≈ US 2–4, 66 ≈ US 4–6, 77 ≈ US 8–10, 88 ≈ US 10–12. Treat these as starting points, not promises.

Men's clothing: 85 to 110

Simpler — the number is the chest measurement in centimetres. A size 100 shirt is cut for a 100 cm chest. Trousers are usually labelled by waist in inches or centimetres alongside.

Shoes: millimetres

Korea sizes footwear by foot length in millimetres, in 5 mm steps. A 250 is a 250 mm foot. This is the one system where measuring beats converting: stand on paper, mark heel and longest toe, measure the distance, and add 5–10 mm for comfort. That number is your Korean size.

Two things that trip people up

Half-measurements in listings. Korean online shops often publish flat measurements taken across a garment lying down. A "chest 57 cm" means 57 across, so 114 cm around. Doubling before you compare avoids a lot of returns.

Korean sizing runs small. Across brands, expect to need one to two sizes larger than your usual Western size, and expect sleeves and torsos to be cut shorter. Free-size items — labelled 프리 or ONE SIZE — are typically drafted around a Korean 55/66 and fit a narrower range than the name suggests.

Common questions

Can I try things on? In many Korean clothing shops, especially in Myeongdong and Hongdae, fitting rooms are limited and some stores do not allow trying on knitwear or tops at all. Department stores are the exception.

What about returns? Small independent shops frequently sell final-sale. Ask before you pay.

Kids' sizes? Children's clothing is labelled by height in centimetres (110, 120, 130 …), which is refreshingly literal.

Size-system details checked against a summary of the Korean Standard (KS) apparel sizing scheme in August 2026. Individual brands deviate; measurements beat labels every time.

Written and maintained by OPDADA (Korea) · Last reviewed August 2026 · Spotted an error? Let us know.