Air Miles Calculator

Distance between Fort Hood, TX (GRK) and Montgomery, AL (MGM)

Flight distance from Fort Hood to Montgomery (Killeen–Fort Hood Regional Airport – Montgomery Regional Airport) is 679 miles / 1092 kilometers / 590 nautical miles. Estimated flight time is 1 hour 47 minutes.

Driving distance from Fort Hood (GRK) to Montgomery (MGM) is 755 miles / 1215 kilometers and travel time by car is about 14 hours 0 minutes.

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

Shortest flight path between Killeen–Fort Hood Regional Airport (GRK) and Montgomery Regional Airport (MGM).

How far is Montgomery from Fort Hood?

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

Vincenty's formula (applied above)
  • 678.701 miles
  • 1092.264 kilometers
  • 589.775 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
  • 677.368 miles
  • 1090.119 kilometers
  • 588.617 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 Montgomery Regional Airport
City: Montgomery, AL
Country: United States Flag of United States
IATA Code: MGM
ICAO Code: KMGM
Coordinates: 32°18′2″N, 86°23′38″W

Time difference and current local times

There is no time difference between Fort Hood and Montgomery.

Time Difference

Fort Hood, TX

 CDT

Montgomery, AL

 CDT

Carbon dioxide emissions

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

Frequent Flyer Miles Calculator

Fort Hood (GRK) → Montgomery (MGM).

Distance:
679
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
679

Round trip?