Measure from the fold in the strap to the hole you currently wear your buckle in most comfortably. DO NOT include your belt buckle in your measurement. In general, your belt size will be two numerals up from your pant size.
Our belts are even -sized (30,32 etc.) and unisex.
Another Option
GO BY YOUR DENIM SIZE GUIDE
XS 2-4| S 6-8| M 10-12| L 14-16| XL 18-20|XXL 22-24|XXXL 26-28