Apparently.

An average pack of Marlboro Reds has 20 cigarettes in it, with 10 packs to a carton. "Regular" cigarettes are 70 mm in length, and "king size" are 84 mm in length. (The filter length averages 30 mm.)

... and I spent like 10 mins just finding this out online when I could have just gotten the answer if I asked a smoker friend OTL