What is the measurement of a sharpie marker?

Around 11mm. To measure it, take a piece of string, and wrap it around it once. cut the string so the ends JUST touch around the sharpie. On a centimeter ruler, measure it in millimeters. there are 10 mm in a cm. it should be about..40ish [too lazy to add for myself]

Divide that number by 3.14. round that.

Answer.