Map of flight path from Seattle to Kōchi.
Shortest flight path between Seattle–Tacoma International Airport (SEA) and Kōchi Airport (KCZ).
How far is Kōchi from Seattle?
There are several ways to calculate distances between Seattle and Kōchi. Here are two common methods:Vincenty's formula (applied above)
- 5145.936 miles
- 8281.581 kilometers
- 4471.696 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
- 5133.919 miles
- 8262.242 kilometers
- 4461.254 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).
Time difference and current local times
The time difference between Seattle and Kōchi is 17 hours. Kōchi is 17 hours ahead of Seattle.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 603 kg (1 329 pounds).
Frequent Flyer Miles Calculator
Seattle (SEA) → Kōchi (KCZ).