Air Miles Calculator

Distance between Seoul (GMP) and Masuda (IWJ)

Flight distance from Seoul to Masuda (Seoul Gimpo International Airport – Iwami Airport) is 343 miles / 552 kilometers / 298 nautical miles. Estimated flight time is 1 hour 8 minutes.

Driving distance from Seoul (GMP) to Masuda (IWJ) is 536 miles / 862 kilometers and travel time by car is about 47 hours 21 minutes.

Map of flight path and driving directions from Seoul to Masuda.

Shortest flight path between Seoul Gimpo International Airport (GMP) and Iwami Airport (IWJ).

How far is Masuda from Seoul?

There are several ways to calculate distances between Seoul and Masuda. Here are two common methods:

Vincenty's formula (applied above)
  • 342.970 miles
  • 551.957 kilometers
  • 298.033 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 342.694 miles
  • 551.512 kilometers
  • 297.793 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).

Airport information


A Seoul Gimpo International Airport
City: Seoul
Country: South Korea Flag of South Korea
IATA Code: GMP
ICAO Code: RKSS
Coordinates: 37°33′29″N, 126°47′27″E

B Iwami Airport
City: Masuda
Country: Japan Flag of Japan
IATA Code: IWJ
ICAO Code: RJOW
Coordinates: 34°40′35″N, 131°47′23″E

Time difference and current local times

There is no time difference between Seoul and Masuda.

Time Difference

Seoul

 KST

Masuda

 JST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 75 kg (166 pounds).

Frequent Flyer Miles Calculator

Seoul (GMP) → Masuda (IWJ).

Distance:
343
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
343

Round trip?