Size of the belt is NOT based on pant size, but waist size. The most accurate way to measure the size needed for a new belt is to measure from the far end of the belt buckle to the hole you use on your current belt. The length of the buckle should be included as shown in the above diagram.
How to measure for a new belt from my shop.
![](https://i.etsystatic.com/isbi/832055/3127430598/isbi_fullxfull.3127430598_79xhonyf.jpg?version=0)