How to Measure a Belt
Measuring a well-fitting belt you already own is the best way to determine your belt size. Lay the belt on a clean, flat surface. Start the tape measure at the hole you use and measure to the end of the belt, where it meets the buckle. Belts are measured in inches and you should round to the nearest inch. If you measure 36 inches, you will want to purchase a size 36 belt.
How to Choose a Belt Size based on Pant Size
An easy way to determine belt size is to simply “add 2″ to your off-the-rack trouser size. For example, if you wear a 36” waist trouser, then a 38 belt size will be a safe bet. Most will find this simple formula works best for pants worn at a traditional height–close to the natural waistline. For a belt to wear with low rise trousers or jeans, consider adding 3 or 4 to your pant size.
How to Measure Your Body for Belt Size
To measure your body for optimal belt size, start by threading the tape measure through the belt loops of your trousers. It’s important to stand in a relaxed, natural position–do not push out your belly or suck it in–when taking the measurement. The measuring tape should be snug. Measure in inches and round to the nearest inch. Choose the belt size closest to this measurement.