Air Miles Calculator logo

How far is Cheongju from Iwakuni?

The distance between Iwakuni (Marine Corps Air Station Iwakuni) and Cheongju (Cheongju International Airport) is 321 miles / 516 kilometers / 279 nautical miles.

The driving distance from Iwakuni (IWK) to Cheongju (CJJ) is 454 miles / 731 kilometers, and travel time by car is about 12 hours 23 minutes.

Marine Corps Air Station Iwakuni – Cheongju International Airport

Distance arrow
321
Miles
Distance arrow
516
Kilometers
Distance arrow
279
Nautical miles

Search flights

Distance from Iwakuni to Cheongju

There are several ways to calculate the distance from Iwakuni to Cheongju. Here are two standard methods:

Vincenty's formula (applied above)
  • 320.711 miles
  • 516.134 kilometers
  • 278.690 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
  • 320.430 miles
  • 515.683 kilometers
  • 278.446 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 Iwakuni to Cheongju?

The estimated flight time from Marine Corps Air Station Iwakuni to Cheongju International Airport is 1 hour and 6 minutes.

What is the time difference between Iwakuni and Cheongju?

There is no time difference between Iwakuni and Cheongju.

Flight carbon footprint between Marine Corps Air Station Iwakuni (IWK) and Cheongju International Airport (CJJ)

On average, flying from Iwakuni to Cheongju generates about 72 kg of CO2 per passenger, and 72 kilograms equals 159 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Iwakuni to Cheongju

See the map of the shortest flight path between Marine Corps Air Station Iwakuni (IWK) and Cheongju International Airport (CJJ).

Airport information

Origin Marine Corps Air Station Iwakuni
City: Iwakuni
Country: Japan Flag of Japan
IATA Code: IWK
ICAO Code: RJOI
Coordinates: 34°8′38″N, 132°14′9″E
Destination Cheongju International Airport
City: Cheongju
Country: South Korea Flag of South Korea
IATA Code: CJJ
ICAO Code: RKTU
Coordinates: 36°42′59″N, 127°29′56″E