How far is Loudon, NH from Portsmouth, NH?
Distance by Flight
Shortest distance between Loudon and Portsmouth is 38.55 miles (62.04 km).
Flight distance from Loudon, NH to Portsmouth, NH is 38.55 miles. Estimated flight time is 00 hours 05 minutes.
Driving distance
The driving distance from Loudon, New Hampshire to Portsmouth, New Hampshire is: 42.7 miles (68.73 km) by car.
Driving from Loudon to Portsmouth will take approximately 01 hours 01 minutes.
#1 Loudon
Town of the United States
| Population | 5697 |
|---|---|
| GPS Coordinates | 43°17'8"N 71°28'2"W |
| Latitude | 43.2856400 |
| Longitude | -71.4672900 |
| Altitude | 116 |
| Country | United States |
#2 Portsmouth
City in Rockingham County, New Hampshire, United States
| Population | 21557 |
|---|---|
| GPS Coordinates | 43°4'37"N 70°45'28"W |
| Latitude | 43.0770400 |
| Longitude | -70.7576600 |
| Altitude | 6 |
| Country | United States |
Ending point in Portsmouth: Congress Street (-70.757617,43.077054)
Estimated Travel Time Between Loudon and Portsmouth
The distance between Loudon and Portsmouth is 69 km if you choose to drive by road. You can go 00 hours 45 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 Loudon and Portsmouth. The current time is 12:58:26.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 01 hours 25 minutes |
| 40 mph (64.37 km/h) | 01 hours 04 minutes |
| 50 mph (80.47 km/h) | 00 hours 51 minutes |
| 60 mph (96.56 km/h) | 00 hours 42 minutes |
| 70 mph (112.65 km/h) | 00 hours 36 minutes |
| 75 mph (120.7 km/h) | 00 hours 34 minutes |
| 80 mph (128.75 km/h) | 00 hours 31 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 5.7 liters (1.51 gallon) of gas to cover the route between Loudon and Portsmouth.
The estimated cost of gas to go from Loudon to Portsmouth is $5.27 (diesel $6.61).
New Hampshire gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.5 | $3.96 | $4.38 | $4.38 |
| Total | $5.27 | $5.97 | $6.6 | $6.61 |
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 (in New Hampshire ) per gallon of daily gas for calculations is $3.496 (Diesel $4.384) /gallon. Last changed prices on December 24, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Loudon and Portsmouth (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.
Distance to Other Cities
Driving distance from Derry Village, NH to Loudon 35.37 miles (57 km)
Driving distance from East Concord, NH to Loudon 5.96 miles (10 km)
