I am not sure what size condoms I should buy, or how to figure it out without having to buy a bunch of different condoms and then trying them all on. Average sized condoms seem a little too tight. I am 6 1/2 inches long and have 6 inches of girth.
The main difference between normal condoms and large condoms is the width. The average girth of a penis is about 4 inches, mine is 6 inches, so normal condoms are too tight. For example, Trojan Magnum XL Condoms are 2.48 inches wide and it is 8.07 inches long, and normal Trojan Condoms are 2 inches wide and are 7.5 inches long. Trojan Magnum XL Condoms are only about half an inch longer than a normal condom.
You don't want condoms too loose... That's for sure.. It's awfully embarrassing when you have your big finish you are both glowing and then you're like... "Oh shit.. Where's the condom...?" And it happens to still be inside the chick.... :/