Shortest distance between Merrimack and Portsmouth is 39.97 miles (64.33 km).
Flight distance from Merrimack, NH to Portsmouth, NH is 39.97 miles. Estimated flight time is 00 hours 06 minutes.
The driving distance from Merrimack, New Hampshire to Portsmouth, New Hampshire is: 55.05 miles (88.59 km) by car.
Driving from Merrimack to Portsmouth will take approximately 00 hours 58 minutes.
The distance between Merrimack and Portsmouth is 89 km if you choose to drive by road. You can go 00 hours 59 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 Merrimack and Portsmouth. The current time is 17:52:16.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||01 hours 50 minutes|
|40 mph (64.37 km/h)||01 hours 22 minutes|
|50 mph (80.47 km/h)||01 hours 06 minutes|
|60 mph (96.56 km/h)||00 hours 55 minutes|
|70 mph (112.65 km/h)||00 hours 47 minutes|
|75 mph (120.7 km/h)||00 hours 44 minutes|
|80 mph (128.75 km/h)||00 hours 41 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 7.35 liters (1.94 gallon) of gas to cover the route between Merrimack and Portsmouth.
The estimated cost of gas to go from Merrimack to Portsmouth is $6.35 (diesel $6.97).
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 16, 2021.
The place names are translated into coordinates to approximate the distance between Merrimack and Portsmouth (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.