How far is Fort Hood, TX, from Alpena, MI?
The distance between Alpena (Alpena County Regional Airport) and Fort Hood (Killeen–Fort Hood Regional Airport) is 1237 miles / 1990 kilometers / 1075 nautical miles.
The driving distance from Alpena (APN) to Fort Hood (GRK) is 1509 miles / 2429 kilometers, and travel time by car is about 27 hours 42 minutes.
Alpena County Regional Airport – Killeen–Fort Hood Regional Airport
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Distance from Alpena to Fort Hood
There are several ways to calculate the distance from Alpena to Fort Hood. Here are two standard methods:
Vincenty's formula (applied above)- 1236.634 miles
- 1990.170 kilometers
- 1074.606 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- 1236.823 miles
- 1990.473 kilometers
- 1074.770 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 Alpena to Fort Hood?
The estimated flight time from Alpena County Regional Airport to Killeen–Fort Hood Regional Airport is 2 hours and 50 minutes.
What is the time difference between Alpena and Fort Hood?
The time difference between Alpena and Fort Hood is 1 hour. Fort Hood is 1 hour behind Alpena.
Flight carbon footprint between Alpena County Regional Airport (APN) and Killeen–Fort Hood Regional Airport (GRK)
On average, flying from Alpena to Fort Hood generates about 163 kg of CO2 per passenger, and 163 kilograms equals 359 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Alpena to Fort Hood
See the map of the shortest flight path between Alpena County Regional Airport (APN) and Killeen–Fort Hood Regional Airport (GRK).
Airport information
| Origin | Alpena County Regional Airport |
|---|---|
| City: | Alpena, MI |
| Country: | United States  |
| IATA Code: | APN |
| ICAO Code: | KAPN |
| Coordinates: | 45°4′41″N, 83°33′37″W |
| Destination | 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 |