Air Miles Calculator

Distance between Rome (FCO) and Washington D.C. (IAD)

Distance from Leonardo da Vinci–Fiumicino Airport to Washington Dulles International Airport is 4505 miles / 7250 kilometers / 3915 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 4505.128 miles
  • 7250.301 kilometers
  • 3914.850 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 4493.920 miles
  • 7232.264 kilometers
  • 3905.110 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from Leonardo da Vinci–Fiumicino Airport (FCO) to Washington Dulles International Airport (IAD) is 9 hours 1 minutes.

Time difference and current local times

The time difference between Rome and Washington D.C. is 6 hours. Washington D.C. is 6 hours behind Rome.

Time Difference

Rome
Washington D.C.

Rome

 CET

Washington D.C.

 EST

Airport information


A 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

B Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

Map

Flight map from Rome to Washington D.C..

Frequent Flyer Miles Calculator

Rome (FCO) → Washington D.C. (IAD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
4505
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
4505

Round trip?