How far is Reading, PA, from Washington D.C.?
The distance between Washington D.C. (Washington Dulles International Airport) and Reading (Reading Regional Airport) is 127 miles / 204 kilometers / 110 nautical miles.
The driving distance from Washington D.C. (IAD) to Reading (RDG) is 163 miles / 263 kilometers, and travel time by car is about 3 hours 37 minutes.
Washington Dulles International Airport – Reading Regional Airport
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Distance from Washington D.C. to Reading
There are several ways to calculate the distance from Washington D.C. to Reading. Here are two standard methods:
Vincenty's formula (applied above)- 126.900 miles
- 204.226 kilometers
- 110.273 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- 126.893 miles
- 204.215 kilometers
- 110.267 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 Washington D.C. to Reading?
The estimated flight time from Washington Dulles International Airport to Reading Regional Airport is 44 minutes.
What is the time difference between Washington D.C. and Reading?
There is no time difference between Washington D.C. and Reading.
Flight carbon footprint between Washington Dulles International Airport (IAD) and Reading Regional Airport (RDG)
On average, flying from Washington D.C. to Reading generates about 44 kg of CO2 per passenger, and 44 kilograms equals 96 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Washington D.C. to Reading
See the map of the shortest flight path between Washington Dulles International Airport (IAD) and Reading Regional Airport (RDG).
Airport information
| Origin | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States  |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″W |
| Destination | Reading Regional Airport |
|---|---|
| City: | Reading, PA |
| Country: | United States |
| IATA Code: | RDG |
| ICAO Code: | KRDG |
| Coordinates: | 40°22′42″N, 75°57′54″W |