# 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
IATA Code: GMP
ICAO Code: RKSS
Coordinates: 37°33′29″N, 126°47′27″E

B Iwami Airport
City: Masuda
Country: 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.

KST

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?