Air Miles Calculator

Distance between Chicago, IL (ORD) and Fort Hood, TX (GRK)

Distance from Chicago to Fort Hood (Killeen–Fort Hood Regional Airport – O'Hare International Airport) is 932 miles / 1500 kilometers / 810 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 931.878 miles
  • 1499.712 kilometers
  • 809.780 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
  • 932.368 miles
  • 1500.500 kilometers
  • 810.205 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 O'Hare International Airport (ORD) to Killeen–Fort Hood Regional Airport (GRK) is 2 hours 15 minutes.

Time difference and current local times

There is no time difference between Chicago and Fort Hood.

Time Difference

Chicago
Fort Hood

Chicago, IL

 CDT

Fort Hood, TX

 CDT

Airport information


A O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″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

Chicago to Fort Hood flight map.

Frequent Flyer Miles Calculator

Chicago (ORD) → Fort Hood (GRK).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
932
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
932

Round trip?