How far is Alton, NH from Portsmouth, NH?
Distance by Flight
Shortest distance between Alton and Portsmouth is 34.75 miles (55.93 km).
Flight distance from Alton, NH to Portsmouth, NH is 34.75 miles. Estimated flight time is 00 hours 04 minutes.
Driving distance
The driving distance from Alton, New Hampshire to Portsmouth, New Hampshire is: 39.01 miles (62.78 km) by car.
Driving from Alton to Portsmouth will take approximately 00 hours 52 minutes.
#1 Alton
Town in New Hampshire (United States)
| Population | 5364 |
|---|---|
| GPS Coordinates | 43°27'8"N 71°13'3"W |
| Latitude | 43.4523000 |
| Longitude | -71.2175700 |
| Altitude | 165 |
| 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 Alton and Portsmouth
The distance between Alton and Portsmouth is 63 km if you choose to drive by road. You can go 00 hours 41 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 Alton and Portsmouth. The current time is 03:55:16.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 01 hours 17 minutes |
| 40 mph (64.37 km/h) | 00 hours 58 minutes |
| 50 mph (80.47 km/h) | 00 hours 46 minutes |
| 60 mph (96.56 km/h) | 00 hours 39 minutes |
| 70 mph (112.65 km/h) | 00 hours 33 minutes |
| 75 mph (120.7 km/h) | 00 hours 31 minutes |
| 80 mph (128.75 km/h) | 00 hours 29 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 5.21 liters (1.38 gallon) of gas to cover the route between Alton and Portsmouth.
The estimated cost of gas to go from Alton to Portsmouth is $4.81 (diesel $6.03).
New Hampshire gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.5 | $3.96 | $4.38 | $4.38 |
| Total | $4.81 | $5.45 | $6.03 | $6.03 |
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 November 25, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Alton 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 Alton 47.87 miles (77 km)
Driving distance from East Concord, NH to Alton 30.79 miles (50 km)
