How do I calculate distances for a whole spreadsheet of locations?

Upload a CSV or Excel file to Geloky's batch distance calculator at https://geloky.com/distance/ — it computes the distance for every origin-destination row at once.

Distance from Vientiane to Dehiwala-Mount Lavinia

Q: How long does it take to drive from Vientiane to Dehiwala-Mount Lavinia?

Driving from Vientiane, Laos to Dehiwala-Mount Lavinia, Sri Lanka takes approximately 43 h 5 min, assuming an average speed of 80 km/h over an estimated road distance of 3447 km. Actual time depends on the route, traffic and border crossings.

Q: How long is the flight from Vientiane to Dehiwala-Mount Lavinia?

A direct flight from Vientiane to Dehiwala-Mount Lavinia covers 2,757 km in about 3 h 45 min at typical cruise speed, plus airport time. Not all city pairs have direct flights.

The distance between Vientiane, Laos and Dehiwala-Mount Lavinia, Sri Lanka is 2,757 km (1,713 miles) in a straight line. If a road route exists, expect roughly 3447 km (2142 miles) by car — around 43 h 5 min of driving.

Measure	Value
Straight-line distance	2,757 km / 1,713 mi
Road distance (estimate)	≈ 3447 km / 2142 mi
Driving time (estimate)	≈ 43 h 5 min
Flight time (estimate)	≈ 3 h 45 min

Road distance and travel times are estimates based on the straight-line distance (road factor 1.25, average speed 80 km/h) — actual routes vary.

Place	Latitude	Longitude
Vientiane, Laos	17.9621577	102.6116341
Dehiwala-Mount Lavinia, Sri Lanka	6.84019	79.87116

Frequently asked questions

How far is Dehiwala-Mount Lavinia from Vientiane?

The straight-line (air) distance from Vientiane, Laos to Dehiwala-Mount Lavinia, Sri Lanka is 2,757 km (1,713 miles). By road it is roughly 3447 km (2142 miles), depending on the route.

How long does it take to drive from Vientiane to Dehiwala-Mount Lavinia?

Approximately 43 h 5 min, assuming an 80 km/h average over an estimated road distance of 3447 km. Actual time depends on the route, traffic and border crossings.

How long is the flight from Vientiane to Dehiwala-Mount Lavinia?

A direct flight covers 2,757 km in about 3 h 45 min at typical cruise speed, plus airport time. Not all city pairs have direct flights.

How do I calculate distances for a whole list of locations?

Upload a CSV or Excel spreadsheet to the batch distance calculator — it computes the distance for every origin–destination row at once. The first records are free to try.