Measure your penis girth with a soft measuring tape or string
Measure the circumference at the thickest part of the erect penis
Compare your measurement to condom size charts from the brand you want to use
Check the condom width listed on the package or product page
Try standard, snug, and large sizes to see which fits best
Choose a size that feels secure without being too tight or too loose
If the condom slips off, it is likely too large
If the condom feels painfully tight or hard to roll down, it is likely too small
Use the same method to recheck if your size changes over time
Follow the brand’s sizing guide because sizes can vary between brands