How far is Roi Et from Simao?

The distance between Simao (Pu'er Simao Airport) and Roi Et (Roi Et Airport) is 495 miles / 796 kilometers / 430 nautical miles.

The driving distance from Simao (SYM) to Roi Et (ROI) is 745 miles / 1199 kilometers, and travel time by car is about 15 hours 17 minutes.

Distance from Simao to Roi Et

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

Vincenty's formula (applied above)

• 494.554 miles
• 795.908 kilometers
• 429.756 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

• 496.366 miles
• 798.824 kilometers
• 431.331 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 Simao to Roi Et?

The estimated flight time from Pu'er Simao Airport to Roi Et Airport is 1 hour and 26 minutes.

What is the time difference between Simao and Roi Et?

The time difference between Simao and Roi Et is 1 hour. Roi Et is 1 hour behind Simao.

Flight carbon footprint between Pu'er Simao Airport (SYM) and Roi Et Airport (ROI)

On average, flying from Simao to Roi Et generates about 98 kg of CO2 per passenger, and 98 kilograms equals 216 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Pu'er Simao Airport (SYM) and Roi Et Airport (ROI).

Airport information

Origin	Pu'er Simao Airport
City:	Simao
Country:	China
IATA Code:	SYM
ICAO Code:	ZPSM
Coordinates:	22°47′35″N, 100°57′32″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