How far is Roi Et from Okayama?

The distance between Okayama (Okayama Airport) and Roi Et (Roi Et Airport) is 2261 miles / 3639 kilometers / 1965 nautical miles.

The driving distance from Okayama (OKJ) to Roi Et (ROI) is 3645 miles / 5866 kilometers, and travel time by car is about 72 hours 5 minutes.

Distance from Okayama to Roi Et

There are several ways to calculate the distance from Okayama to Roi Et. Here are two standard methods:

Vincenty's formula (applied above)

• 2261.297 miles
• 3639.205 kilometers
• 1965.013 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

• 2261.325 miles
• 3639.250 kilometers
• 1965.038 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 Okayama to Roi Et?

The estimated flight time from Okayama Airport to Roi Et Airport is 4 hours and 46 minutes.

What is the time difference between Okayama and Roi Et?

The time difference between Okayama and Roi Et is 2 hours. Roi Et is 2 hours behind Okayama.

Flight carbon footprint between Okayama Airport (OKJ) and Roi Et Airport (ROI)

On average, flying from Okayama to Roi Et generates about 247 kg of CO2 per passenger, and 247 kilograms equals 546 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Okayama to Roi Et

See the map of the shortest flight path between Okayama Airport (OKJ) and Roi Et Airport (ROI).

Airport information

Origin	Okayama Airport
City:	Okayama
Country:	Japan
IATA Code:	OKJ
ICAO Code:	RJOB
Coordinates:	34°45′24″N, 133°51′17″E

Destination	Roi Et Airport
City:	Roi Et
Country:	Thailand
IATA Code:	ROI
ICAO Code:	VTUV
Coordinates:	16°7′0″N, 103°46′26″E