Correction for the size of a Ballpoint Pen Tip
Thanks for your input! Let us know more about what's wrong in the form below.
How big is 0.69720 circular inches?
It's about 500 times as big as a Ballpoint Pen Tip
The size of a Ballpoint Pen Tip is about 0.0014 circular inches.
(a.k.a. Biro, a.k.a. ball pen, a.k.a. dot pen) (for medium tip)
The most common size of ballpoint pen — a medium-tip — measures 0.0014 circular inches. A typical ballpoint pen can write more than 8,500 m (28,000 ft) before running out of ink.