Shortest distance between Stratham and Portsmouth is 8.69 miles (13.98 km).
Flight distance from Stratham, NH to Portsmouth, NH is 8.69 miles. Estimated flight time is 00 hours 01 minutes.
The driving distance from Stratham, New Hampshire to Portsmouth, New Hampshire is: 11.34 miles (18.25 km) by car.
Driving from Stratham to Portsmouth will take approximately 00 hours 19 minutes.
The distance between Stratham and Portsmouth is 18 km if you choose to drive by road. You can go 00 hours 12 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 Stratham and Portsmouth. The current time is 18:01:19.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||00 hours 22 minutes|
|40 mph (64.37 km/h)||00 hours 17 minutes|
|50 mph (80.47 km/h)||00 hours 13 minutes|
|60 mph (96.56 km/h)||00 hours 11 minutes|
|70 mph (112.65 km/h)||00 hours 09 minutes|
|75 mph (120.7 km/h)||00 hours 09 minutes|
|80 mph (128.75 km/h)||00 hours 08 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 1.51 liters (0.4 gallon) of gas to cover the route between Stratham and Portsmouth.
The estimated cost of gas to go from Stratham to Portsmouth is $1.35 (diesel $1.49).
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 $3.38 (Diesel $3.72) /gallon. Last changed prices on December 06, 2021.
The place names are translated into coordinates to approximate the distance between Stratham and Portsmouth (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.