How far is Ulaanbaatar from Roi Et?
The distance between Roi Et (Roi Et Airport) and Ulaanbaatar (Chinggis Khaan International Airport) is 2180 miles / 3508 kilometers / 1894 nautical miles.
The driving distance from Roi Et (ROI) to Ulaanbaatar (UBN) is 2789 miles / 4488 kilometers, and travel time by car is about 55 hours 58 minutes.
Roi Et Airport – Chinggis Khaan International Airport
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Distance from Roi Et to Ulaanbaatar
There are several ways to calculate the distance from Roi Et to Ulaanbaatar. Here are two standard methods:
Vincenty's formula (applied above)- 2179.645 miles
- 3507.799 kilometers
- 1894.060 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- 2185.435 miles
- 3517.117 kilometers
- 1899.091 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 Roi Et to Ulaanbaatar?
The estimated flight time from Roi Et Airport to Chinggis Khaan International Airport is 4 hours and 37 minutes.
What is the time difference between Roi Et and Ulaanbaatar?
The time difference between Roi Et and Ulaanbaatar is 1 hour. Ulaanbaatar is 1 hour ahead of Roi Et.
Flight carbon footprint between Roi Et Airport (ROI) and Chinggis Khaan International Airport (UBN)
On average, flying from Roi Et to Ulaanbaatar generates about 238 kg of CO2 per passenger, and 238 kilograms equals 525 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Roi Et to Ulaanbaatar
See the map of the shortest flight path between Roi Et Airport (ROI) and Chinggis Khaan International Airport (UBN).
Airport information
| Origin | Roi Et Airport |
|---|---|
| City: | Roi Et |
| Country: | Thailand  |
| IATA Code: | ROI |
| ICAO Code: | VTUV |
| Coordinates: | 16°7′0″N, 103°46′26″E |
| Destination | Chinggis Khaan International Airport |
|---|---|
| City: | Ulaanbaatar |
| Country: | Mongolia  |
| IATA Code: | UBN |
| ICAO Code: | ZMCK |
| Coordinates: | 47°38′48″N, 106°49′11″E |