Estimated travel durations
The straight-line distance from Kathmandu to Colombo is 2,382 kilometers (1,480 miles). This is the crow-flies distance calculated using the Haversine formula.
A direct flight from Kathmandu to Colombo takes approximately 4h. This is an estimate based on an average cruising speed of 800 km/h and does not include boarding, taxiing or layover time.
Driving from Kathmandu to Colombo would take approximately 1 days, 1h at an average speed of 85 km/h. The actual driving time may vary depending on road conditions, traffic and border crossings.
The distance from Kathmandu to Colombo is 1,480 miles (2,382 km) as the crow flies.