How many 4hr sessions does it typically take to complete a Dungeon adventure?

[howandwhy99]

1st level adventure.... maybe 1 session
20th level adventures are going to take 3 or more.

 

[Olgar Shiverstone]

Depends on the length of your sessions, the level of adventure, and length of the adventure, but 3-4 4 hour, or 2-3 6 hour has been my experience.