Shortest distance between Keene and Portsmouth is 77.46 miles (124.66 km).
Flight distance from Keene, NH to Portsmouth, NH is 77.46 miles. Estimated flight time is 00 hours 12 minutes.
It takes 00 hours 11 minutes to travel from Keene to Portsmouth with an airplane (average speed of 550 miles).
The driving distance from Keene, New Hampshire to Portsmouth, New Hampshire is: 107.13 miles (172.41 km) by car.
Driving from Keene to Portsmouth will take approximately 01 hours 49 minutes.
The distance between Keene and Portsmouth is 172 km if you choose to drive by road. You can go 01 hours 54 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.
There is no time difference between Keene and Portsmouth. The current time is 20:12:08.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||03 hours 34 minutes|
|40 mph (64.37 km/h)||02 hours 40 minutes|
|50 mph (80.47 km/h)||02 hours 08 minutes|
|60 mph (96.56 km/h)||01 hours 47 minutes|
|70 mph (112.65 km/h)||01 hours 31 minutes|
|75 mph (120.7 km/h)||01 hours 25 minutes|
|80 mph (128.75 km/h)||01 hours 20 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 14.31 liters (3.78 gallon) of gas to cover the route between Keene and Portsmouth.
The estimated cost of gas to go from Keene to Portsmouth is $12.35 (diesel $13.56).
Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.
The average gas price per gallon of daily gas for calculations is $3.267 (Diesel $3.586) /gallon. Last changed prices on October 15, 2021.
The place names are translated into coordinates to approximate the distance between Keene and Portsmouth (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.