# 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
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
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.

CST

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?