Air Miles Calculator

Distance between Houston, TX (IAH) and Fort Hood, TX (GRK)

Distance from George Bush Intercontinental Airport to Killeen–Fort Hood Regional Airport is 166 miles / 267 kilometers / 144 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 166.033 miles
  • 267.204 kilometers
  • 144.279 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
  • 165.872 miles
  • 266.945 kilometers
  • 144.139 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from George Bush Intercontinental Airport (IAH) to Killeen–Fort Hood Regional Airport (GRK) is 48 minutes.

Time difference and current local times

There is no time difference between Houston and Fort Hood.

Time Difference

Houston
Fort Hood

Houston, TX

 CST

Fort Hood, TX

 CST

Airport information


A George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″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

Flight map from Houston to Fort Hood.

Frequent Flyer Miles Calculator

Houston (IAH) → Fort Hood (GRK).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
166
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
166

Round trip?