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How far is Portsmouth, NH, from Rome?

The distance between Rome (Leonardo da Vinci–Fiumicino Airport) and Portsmouth (Portsmouth International Airport at Pease) is 4060 miles / 6534 kilometers / 3528 nautical miles.

Leonardo da Vinci–Fiumicino Airport – Portsmouth International Airport at Pease

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4060
Miles
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6534
Kilometers
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3528
Nautical miles

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Distance from Rome to Portsmouth

There are several ways to calculate the distance from Rome to Portsmouth. Here are two standard methods:

Vincenty's formula (applied above)
  • 4059.878 miles
  • 6533.740 kilometers
  • 3527.937 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
  • 4049.233 miles
  • 6516.608 kilometers
  • 3518.687 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 Rome to Portsmouth?

The estimated flight time from Leonardo da Vinci–Fiumicino Airport to Portsmouth International Airport at Pease is 8 hours and 11 minutes.

Flight carbon footprint between Leonardo da Vinci–Fiumicino Airport (FCO) and Portsmouth International Airport at Pease (PSM)

On average, flying from Rome to Portsmouth generates about 464 kg of CO2 per passenger, and 464 kilograms equals 1 023 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rome to Portsmouth

See the map of the shortest flight path between Leonardo da Vinci–Fiumicino Airport (FCO) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin Leonardo da Vinci–Fiumicino Airport
City: Rome
Country: Italy Flag of Italy
IATA Code: FCO
ICAO Code: LIRF
Coordinates: 41°48′16″N, 12°15′2″E
Destination Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W