The belt sizing chart will vary depending on whether you are a man, woman, or child. The sizes for men are: X-Small 26-28in, Small 30-32in, Medium 34-36in, Large 38-40in, X-Large 42-44, etc.. The sizes for women are: X-Small 6-8in, Small 10-12in, Medium 14-16, Large 18-20, X-Large 22-24, etc... The chart for toddlers is a little different, it doesn't uses inches. A small for a child will be
. either 2T regular, 3T regular 4T regular or 5. Mediums will be: 6,7,8, or 9 regular. A large either a 10 or 11 regular. You can find more information here: http://beltmastersdirect.com/beltsizechart.html