Air Miles Calculator

Distance between St Louis, MO (STL) and Fort Hood, TX (GRK)

Distance from St Louis to Fort Hood (St. Louis Lambert International Airport – Killeen–Fort Hood Regional Airport) is 678 miles / 1090 kilometers / 589 nautical miles.

How far is Fort Hood from St Louis?

There are several ways to calculate distances between St Louis and Fort Hood. Here are two common methods:

Vincenty's formula (applied above)
  • 677.539 miles
  • 1090.393 kilometers
  • 588.765 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
  • 677.911 miles
  • 1090.992 kilometers
  • 589.088 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).

Flight duration

Estimated flight time from St. Louis Lambert International Airport (STL) to Killeen–Fort Hood Regional Airport (GRK) is 1 hour 46 minutes.

Time difference and current local times

There is no time difference between St Louis and Fort Hood.

Time Difference

St Louis
Fort Hood

St Louis, MO

 CST

Fort Hood, TX

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 122 kg (269 pounds).

Airport information


A St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

B Killeen–Fort Hood Regional Airport
City: Fort Hood, TX
Country: United States Flag of United States
IATA Code: GRK
ICAO Code: KGRK
Coordinates: 31°4′1″N, 97°49′44″W

Map

St Louis to Fort Hood flight map.

Frequent Flyer Miles Calculator

St Louis (STL) → Fort Hood (GRK).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
678
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
678

Round trip?