How far is Roanoke from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and Roanoke. Here are two common methods:Vincenty's formula (applied above)
- 176.930 miles
- 284.741 kilometers
- 153.748 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
- 176.800 miles
- 284.532 kilometers
- 153.635 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).
Estimated flight time from Washington Dulles International Airport (IAD) to Roanoke–Blacksburg Regional Airport (ROA) is 50 minutes.
Time difference and current local times
There is no time difference between Washington D.C. and Roanoke.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 49 kg (107 pounds).
Washington D.C. to Roanoke flight map.
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Roanoke (ROA).