How long will it take to level from 15-70 dungeoneering on f2p, using the fastest methods possible?

 

Thanks. :)

Depends on what you do.

 

5-man larges are ~30k-50k exp per floor, and each can take 40-60 minutes.

15-70 is ~700k exp, so expect around 20-30 hours to reach 70 Dungeoneering.

That is, of course, if you actually manage to 5-man all the way through.

 

3-man meds are ~5k-7k exp per floor, and each can take 20-30 minutes.

This takes around 40-50 hours to reach that level.

 

Otherwise, soloing is ~1k-3k exp per floor, and each can take 5-15 minutes.

Expect around 60-70 hours to reach that level this way.

 

I recommend you to do a mix of solo, co-op med, and 5-man larges to get max benefits and fun. :D