Choosing the right belt size is important for comfort and appearance. Step 1 Measure your waist using a measuring tape at the point where you usually wear your belt. Step 2 Add approximately 2 inches to your pant waist size for a comfortable fit. Example: If your pant size is 32, you should choose a belt size around 34. Trendly provides size guidance on product pages to help customers choose correctly when buying first copy belts online India ,armani exchange belts first copy.