How far is Alpena, MI, from Green Bay, WI?
The distance between Green Bay (Green Bay–Austin Straubel International Airport) and Alpena (Alpena County Regional Airport) is 228 miles / 368 kilometers / 198 nautical miles.
The driving distance from Green Bay (GRB) to Alpena (APN) is 352 miles / 566 kilometers, and travel time by car is about 7 hours 39 minutes.
Green Bay–Austin Straubel International Airport – Alpena County Regional Airport
Search flights
Distance from Green Bay to Alpena
There are several ways to calculate the distance from Green Bay to Alpena. Here are two standard methods:
Vincenty's formula (applied above)- 228.380 miles
- 367.543 kilometers
- 198.457 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- 227.771 miles
- 366.562 kilometers
- 197.927 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 Green Bay to Alpena?
The estimated flight time from Green Bay–Austin Straubel International Airport to Alpena County Regional Airport is 55 minutes.
What is the time difference between Green Bay and Alpena?
The time difference between Green Bay and Alpena is 1 hour. Alpena is 1 hour ahead of Green Bay.
Flight carbon footprint between Green Bay–Austin Straubel International Airport (GRB) and Alpena County Regional Airport (APN)
On average, flying from Green Bay to Alpena generates about 59 kg of CO2 per passenger, and 59 kilograms equals 129 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Green Bay to Alpena
See the map of the shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and Alpena County Regional Airport (APN).
Airport information
| Origin | Green Bay–Austin Straubel International Airport |
|---|---|
| City: | Green Bay, WI |
| Country: | United States  |
| IATA Code: | GRB |
| ICAO Code: | KGRB |
| Coordinates: | 44°29′6″N, 88°7′46″W |
| Destination | 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 |