Map of flight path from Washington D.C. to Rome.
Shortest flight path between Washington Dulles International Airport (IAD) and Leonardo da Vinci–Fiumicino Airport (FCO).
How far is Rome from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and Rome. Here are two common 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 – the shortest distance between two points).
Time difference and current local times
The time difference between Washington D.C. and Rome is 6 hours. Rome is 6 hours ahead of Washington D.C..
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 520 kg (1 147 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Rome (FCO).