When using condoms if there’s any issue figuring out the right fit, you can measure the length and girth of the erect penis to better know which condom will be right for you! 

Hopefully this chart will clarify the differences between the major brands and sizes, and make shopping easier in the future. 

For even more thorough coverage of condom sizes check out https://www.condom-sizes.org/ which also provided an incredible reference for this chart!