How long does it take to hike apalacian trail in NH?

The Appalachian Trail stretches 161 miles in the state of New Hampshire, how long it would take you to hike that far depends on a lot of factors. The trail in New Hampshire is fairly difficult so depending on your level of experience you could hike anywhere between 5 and 9 miles per day, so it could take anywhere from 17 to 33 days to hike all the way through.