Measure the length of your erect penis from the base to the tip
Measure the girth of your erect penis around the thickest part using a soft measuring tape or string
Use the girth measurement as the main guide for condom fit
Compare your measurements to the size chart on the condom brand’s packaging or website
Choose snug fit if standard condoms feel loose or slip
Choose regular fit if standard condoms feel comfortable and secure
Choose large or XL if standard condoms feel tight, hard to roll on, or uncomfortable
Try a different brand if the same labeled size fits differently
Check for signs of poor fit such as slipping, breaking, or pinching
Re-measure if your size changes with arousal or if your first measurement was inaccurate