Flight distance from Raleigh to Washington D.C. (Raleigh–Durham International Airport – Ronald Reagan Washington National Airport) is 227 miles / 365 kilometers / 197 nautical miles. Estimated flight time is 55 minutes.
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Driving distance from Raleigh (RDU) to Washington D.C. (DCA) is 265 miles / 426 kilometers and travel time by car is about 4 hours 50 minutes.
Shortest flight path between Raleigh–Durham International Airport (RDU) and Ronald Reagan Washington National Airport (DCA).
There are several ways to calculate distances between Raleigh and Washington D.C.. Here are two common methods:
Vincenty”s formula (applied above)226.603 miles364.682 kilometers196.912 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 formula226.859 miles365.094 kilometers197.135 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).
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