How far is Colombo from Washington D.C.?
The distance between Washington D.C. (Washington Dulles International Airport) and Colombo (Ratmalana Airport) is 8965 miles / 14428 kilometers / 7791 nautical miles.
Washington Dulles International Airport – Ratmalana Airport
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Distance from Washington D.C. to Colombo
There are several ways to calculate the distance from Washington D.C. to Colombo. Here are two standard methods:
Vincenty's formula (applied above)- 8965.227 miles
- 14428.135 kilometers
- 7790.570 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- 8957.379 miles
- 14415.503 kilometers
- 7783.749 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 Colombo?
The estimated flight time from Washington Dulles International Airport to Ratmalana Airport is 17 hours and 28 minutes.
What is the time difference between Washington D.C. and Colombo?
Flight carbon footprint between Washington Dulles International Airport (IAD) and Ratmalana Airport (RML)
On average, flying from Washington D.C. to Colombo generates about 1 142 kg of CO2 per passenger, and 1 142 kilograms equals 2 518 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Washington D.C. to Colombo
See the map of the shortest flight path between Washington Dulles International Airport (IAD) and Ratmalana Airport (RML).
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 | Ratmalana Airport |
|---|---|
| City: | Colombo |
| Country: | Sri Lanka  |
| IATA Code: | RML |
| ICAO Code: | VCCC |
| Coordinates: | 6°49′19″N, 79°53′10″E |