How far is Roi Et from Haiphong?

The distance between Haiphong (Cat Bi International Airport) and Roi Et (Roi Et Airport) is 377 miles / 607 kilometers / 328 nautical miles.

The driving distance from Haiphong (HPH) to Roi Et (ROI) is 572 miles / 921 kilometers, and travel time by car is about 12 hours 12 minutes.

Distance from Haiphong to Roi Et

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

Vincenty's formula (applied above)

• 376.948 miles
• 606.639 kilometers
• 327.559 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

• 378.080 miles
• 608.461 kilometers
• 328.543 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 Haiphong to Roi Et?

The estimated flight time from Cat Bi International Airport to Roi Et Airport is 1 hour and 12 minutes.

What is the time difference between Haiphong and Roi Et?

There is no time difference between Haiphong and Roi Et.

Flight carbon footprint between Cat Bi International Airport (HPH) and Roi Et Airport (ROI)

On average, flying from Haiphong to Roi Et generates about 81 kg of CO2 per passenger, and 81 kilograms equals 177 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Cat Bi International Airport (HPH) and Roi Et Airport (ROI).

Airport information

Origin	Cat Bi International Airport
City:	Haiphong
Country:	Vietnam
IATA Code:	HPH
ICAO Code:	VVCI
Coordinates:	20°49′9″N, 106°43′29″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