Asian Swimwear Size Converter

Swimwear is the highest-stakes category for online size conversion because there's no room for error — a swimsuit that doesn't fit is unwearable. Asian swimwear sizing runs one to two sizes smaller than US standards, and the fit is often cut for a slimmer torso. For women's swimwear, bust measurement is the critical factor, and Asian sizing tends to accommodate smaller cup sizes. Men's swim trunks are generally more forgiving due to elastic waistbands but can run short in length. Our converter maps your US swimwear size to the correct equivalent at Shein, Temu, AliExpress, Zara and H&M for both women and men. Always check the product's measurement chart for bust, waist and hip dimensions. If you're between sizes, size up — you can always cinch a swimsuit with ties but can't stretch one that's too small.