How far is Roswell, NM, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Roswell (Roswell International Air Center) is 1939 miles / 3121 kilometers / 1685 nautical miles.
The driving distance from Portsmouth (PSM) to Roswell (ROW) is 2204 miles / 3547 kilometers, and travel time by car is about 40 hours 53 minutes.
Portsmouth International Airport at Pease – Roswell International Air Center
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Distance from Portsmouth to Roswell
There are several ways to calculate the distance from Portsmouth to Roswell. Here are two standard methods:
Vincenty's formula (applied above)- 1939.159 miles
- 3120.773 kilometers
- 1685.083 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 1935.494 miles
- 3114.876 kilometers
- 1681.898 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Portsmouth to Roswell?
The estimated flight time from Portsmouth International Airport at Pease to Roswell International Air Center is 4 hours and 10 minutes.
What is the time difference between Portsmouth and Roswell?
The time difference between Portsmouth and Roswell is 2 hours. Roswell is 2 hours behind Portsmouth.
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Roswell International Air Center (ROW)
On average, flying from Portsmouth to Roswell generates about 212 kg of CO2 per passenger, and 212 kilograms equals 467 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Portsmouth to Roswell
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Roswell International Air Center (ROW).
Airport information
| Origin | Portsmouth International Airport at Pease |
|---|---|
| City: | Portsmouth, NH |
| Country: | United States  |
| IATA Code: | PSM |
| ICAO Code: | KPSM |
| Coordinates: | 43°4′40″N, 70°49′23″W |
| Destination | Roswell International Air Center |
|---|---|
| City: | Roswell, NM |
| Country: | United States |
| IATA Code: | ROW |
| ICAO Code: | KROW |
| Coordinates: | 33°18′5″N, 104°31′51″W |