Air Miles Calculator

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

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

Driving distance from Fort Hood (GRK) to Huntsville (HSV) is 819 miles / 1318 kilometers and travel time by car is about 14 hours 18 minutes.

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

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

How far is Huntsville from Fort Hood?

There are several ways to calculate distances between Fort Hood and Huntsville. 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 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

B 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

Time difference and current local times

There is no time difference between Fort Hood and Huntsville.

Time Difference

Fort Hood, TX

 CDT

Huntsville, AL

 CDT

Carbon dioxide emissions

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

Frequent Flyer Miles Calculator

Fort Hood (GRK) → Huntsville (HSV).

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

In total

Total frequent flyer miles:
688

Round trip?