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How far is Fort Hood, TX, from Fort Smith, AR?

The distance between Fort Smith (Fort Smith Regional Airport) and Fort Hood (Killeen–Fort Hood Regional Airport) is 356 miles / 573 kilometers / 309 nautical miles.

The driving distance from Fort Smith (FSM) to Fort Hood (GRK) is 446 miles / 718 kilometers, and travel time by car is about 8 hours 25 minutes.

Fort Smith Regional Airport – Killeen–Fort Hood Regional Airport

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356
Miles
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573
Kilometers
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309
Nautical miles

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Distance from Fort Smith to Fort Hood

There are several ways to calculate the distance from Fort Smith to Fort Hood. Here are two standard methods:

Vincenty's formula (applied above)
  • 356.009 miles
  • 572.941 kilometers
  • 309.363 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 356.399 miles
  • 573.569 kilometers
  • 309.703 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).

How long does it take to fly from Fort Smith to Fort Hood?

The estimated flight time from Fort Smith Regional Airport to Killeen–Fort Hood Regional Airport is 1 hour and 10 minutes.

What is the time difference between Fort Smith and Fort Hood?

There is no time difference between Fort Smith and Fort Hood.

Flight carbon footprint between Fort Smith Regional Airport (FSM) and Killeen–Fort Hood Regional Airport (GRK)

On average, flying from Fort Smith to Fort Hood generates about 77 kg of CO2 per passenger, and 77 kilograms equals 171 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Fort Smith to Fort Hood

See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and Killeen–Fort Hood Regional Airport (GRK).

Airport information

Origin Fort Smith Regional Airport
City: Fort Smith, AR
Country: United States Flag of United States
IATA Code: FSM
ICAO Code: KFSM
Coordinates: 35°20′11″N, 94°22′2″W
Destination 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