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How far is Blackwater from Kathmandu?

The distance between Kathmandu (Tribhuvan International Airport) and Blackwater (Blackwater Airport) is 5509 miles / 8866 kilometers / 4787 nautical miles.

Tribhuvan International Airport – Blackwater Airport

Distance arrow
5509
Miles
Distance arrow
8866
Kilometers
Distance arrow
4787
Nautical miles
Flight time duration
10 h 55 min
Time Difference
4 h 15 min
CO2 emission
651 kg

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Distance from Kathmandu to Blackwater

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

Vincenty's formula (applied above)
  • 5508.787 miles
  • 8865.534 kilometers
  • 4787.005 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
  • 5515.683 miles
  • 8876.631 kilometers
  • 4792.997 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 Kathmandu to Blackwater?

The estimated flight time from Tribhuvan International Airport to Blackwater Airport is 10 hours and 55 minutes.

Flight carbon footprint between Tribhuvan International Airport (KTM) and Blackwater Airport (BLT)

On average, flying from Kathmandu to Blackwater generates about 651 kg of CO2 per passenger, and 651 kilograms equals 1 435 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Kathmandu to Blackwater

See the map of the shortest flight path between Tribhuvan International Airport (KTM) and Blackwater Airport (BLT).

Airport information

Origin 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
Destination Blackwater Airport
City: Blackwater
Country: Australia Flag of Australia
IATA Code: BLT
ICAO Code: YBTR
Coordinates: 23°36′11″S, 148°48′25″E