Air Miles Calculator logo

How far is Kathmandu from Washington D.C.?

The distance between Washington D.C. (Washington Dulles International Airport) and Kathmandu (Tribhuvan International Airport) is 7714 miles / 12415 kilometers / 6704 nautical miles.

Washington Dulles International Airport – Tribhuvan International Airport

Distance arrow
7714
Miles
Distance arrow
12415
Kilometers
Distance arrow
6704
Nautical miles
Flight time duration
15 h 6 min
Time Difference
9 h 45 min
CO2 emission
957 kg

Search flights

Distance from Washington D.C. to Kathmandu

There are several ways to calculate the distance from Washington D.C. to Kathmandu. Here are two standard methods:

Vincenty's formula (applied above)
  • 7714.301 miles
  • 12414.964 kilometers
  • 6703.544 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
  • 7700.700 miles
  • 12393.076 kilometers
  • 6691.726 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 Kathmandu?

The estimated flight time from Washington Dulles International Airport to Tribhuvan International Airport is 15 hours and 6 minutes.

Flight carbon footprint between Washington Dulles International Airport (IAD) and Tribhuvan International Airport (KTM)

On average, flying from Washington D.C. to Kathmandu generates about 957 kg of CO2 per passenger, and 957 kilograms equals 2 109 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 Kathmandu

See the map of the shortest flight path between Washington Dulles International Airport (IAD) and Tribhuvan International Airport (KTM).

Airport information

Origin Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W
Destination Tribhuvan International Airport
City: Kathmandu
Country: Nepal Flag of Nepal
IATA Code: KTM
ICAO Code: VNKT
Coordinates: 27°41′47″N, 85°21′32″E