Air Miles Calculator

Distance between Huntsville, AL (HSV) and Fort Hood, TX (GRK)

Flight distance from Huntsville to Fort Hood (Huntsville International Airport – Killeen–Fort Hood Regional Airport) is 688 miles / 1107 kilometers / 598 nautical miles. Estimated flight time is 1 hour 48 minutes.

Driving distance from Huntsville (HSV) to Fort Hood (GRK) is 818 miles / 1316 kilometers and travel time by car is about 14 hours 22 minutes.

Map of flight path and driving directions from Huntsville to Fort Hood.

Shortest flight path between Huntsville International Airport (HSV) and Killeen–Fort Hood Regional Airport (GRK).

How far is Fort Hood from Huntsville?

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

Vincenty's formula (applied above)
  • 687.918 miles
  • 1107.097 kilometers
  • 597.784 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
  • 686.891 miles
  • 1105.443 kilometers
  • 596.892 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 Huntsville International Airport
City: Huntsville, AL
Country: United States Flag of United States
IATA Code: HSV
ICAO Code: KHSV
Coordinates: 34°38′13″N, 86°46′30″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

Time difference and current local times

There is no time difference between Huntsville and Fort Hood.

Time Difference

Huntsville, AL

 CST

Fort Hood, TX

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 123 kg (272 pounds).

Frequent Flyer Miles Calculator

Huntsville (HSV) → Fort Hood (GRK).

Distance:
688
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
688

Round trip?