Pant Size Calculator
Universal sizing — US, UK, EU, AUS, JP, KR, CN · Advanced fit intelligence
📏 About this pant size calculator — Whether you’re shopping locally or internationally, this advanced tool converts waist, inseam, and optional hip measurements into standardized sizes across 7+ regions. It uses industry conversion logic for men & women, real-time graph comparison, and explains key factors (waist circumference, leg length, hip ratio) according to USA fitting standards. Works worldwide: US (inch sizing), UK, EU numeric, Australia, Japan (cm), Korea, China. Get your perfect fit across brands!
📐 Your measurements
✅ All fields update in real time
🌍 Your international sizes
📊 Sizing comparison graph
Visual comparison across regions (based on waist & gender). Hover for values.
📌 USA standard factors explained
▪ Waist: Measured at natural waistline (~navel level). US men’s pant size = waist in inches. Women’s US numeric sizes depend on waist & hip (size 4 ≈ 25.5″ waist).
▪ Inseam: Inside leg from crotch to ankle. US standard lengths: Short (28″–29″), Regular (30″–32″), Long (33″–34″), Extra Long (35″+).
▪ Hip: Key for women’s fit, ensures comfort. Our advanced calculator uses optional hip to suggest fit harmony.
▪ International mapping: EU (men: US waist +16), UK (same as US for men), EU women (US size +30), AU follows UK, Asia sizes often in waist cm.
▪ Waist: Measured at natural waistline (~navel level). US men’s pant size = waist in inches. Women’s US numeric sizes depend on waist & hip (size 4 ≈ 25.5″ waist).
▪ Inseam: Inside leg from crotch to ankle. US standard lengths: Short (28″–29″), Regular (30″–32″), Long (33″–34″), Extra Long (35″+).
▪ Hip: Key for women’s fit, ensures comfort. Our advanced calculator uses optional hip to suggest fit harmony.
▪ International mapping: EU (men: US waist +16), UK (same as US for men), EU women (US size +30), AU follows UK, Asia sizes often in waist cm.