Buckle Belt Sizer

Buckle is the fastest way to find your belt size — whether you measure in centimeters or inches, and wherever you shop. Enter your waist measurement and Buckle instantly converts it between cm and inches, then shows your equivalent size across four regional standards: EU, US (XS–XXXL), UK numeric, and Japanese sizing. The full-size reference chart covers 70 cm to 130 cm in 5 cm steps, so you can scan the complete range at a glance and compare EU, US, UK, and Japan labels side by side. Save personal profiles for yourself, family members, or gifts — each profile stores a name, waist measurement, and preferred belt size, with automatic size equivalents shown from the chart. Everything runs offline. No account, no ads, no tracking. Features: - Convert waist measurements between cm and inches instantly - Regional size labels: EU (70–130 cm), US (XS–XXXL), UK numeric, Japan - Full size chart 70–130 cm in 5 cm steps - Saved profiles for multiple people - Leather-toned design, iPhone only - Fully offline — no internet required