Condom Size for a 6.5-Inch Girth
A 6.5-inch (16.5 cm) erect girth needs a large / XL condom. Fit is set by girth, not length — here's the exact nominal width to buy.
large / XL
Recommended fit
~74 mm
nominal width (lay-flat)
Get this exact size
“Large” on a shelf box is vague. MyONE makes custom widths up to 64 mm, so a roomy fit actually fits.
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Why girth, not length
Length only decides how far a condom unrolls; girth decides whether it grips. Buy by your circumference and a condom feels better and is far less likely to slip or split.
Not sure of your girth? Measure it with the condom calculator →
What condom size do I need for a 6.5-inch girth?
A 6.5-inch girth maps to a large / XL condom — roughly a 74 mm nominal (lay-flat) width.
Is a 6.5-inch girth big?
Average erect girth is 11.66 cm (4.59 in). A 6.5-inch girth is compared against that on our statistics page.