Size Chart
International clothing, shoe, bra and ring size conversion for US, UK, EU, Japan, China and more.
Convert my size
Size table
How to use the size chart
Choose a chart (for example women's shoes), then pick the size system you know and your size. All equivalent sizes are shown instantly and the matching row is highlighted in the full table. You can also tap any row in the table to select it.
Why sizes differ between brands
Except for ring sizes, which are defined by exact measurements, clothing and shoe sizes are not fully standardised. Each brand uses its own patterns and lasts, so the same label can fit differently. Treat these charts as a starting point and, whenever possible, compare with the brand's own size guide or with your body measurements (chest, waist, foot length).
Measuring tips
For shoes, measure your foot from heel to longest toe in the late afternoon, when feet are largest, and use the bigger foot. For shirts, measure around the base of your neck and add about a finger's width. For rings, measure the inside diameter of a ring that fits, or wrap a strip of paper around your finger and measure its length (circumference).
Sources: values follow commonly published international conversion charts used by retailers (rounded to the usual half sizes). Ring diameters are calculated from the US/Canada standard (diameter = 11.63 mm + 0.8128 mm × size) and EU/ISO sizes equal the inside circumference in mm.