Air Miles Calculator logo

How far is Riverton, WY, from Alpena, MI?

The distance between Alpena (Alpena County Regional Airport) and Riverton (Central Wyoming Regional Airport) is 1242 miles / 1999 kilometers / 1079 nautical miles.

The driving distance from Alpena (APN) to Riverton (RIW) is 1555 miles / 2503 kilometers, and travel time by car is about 30 hours 3 minutes.

Alpena County Regional Airport – Central Wyoming Regional Airport

Distance arrow
1242
Miles
Distance arrow
1999
Kilometers
Distance arrow
1079
Nautical miles

Search flights

Distance from Alpena to Riverton

There are several ways to calculate the distance from Alpena to Riverton. Here are two standard methods:

Vincenty's formula (applied above)
  • 1242.265 miles
  • 1999.231 kilometers
  • 1079.499 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
  • 1238.920 miles
  • 1993.849 kilometers
  • 1076.592 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 Riverton?

The estimated flight time from Alpena County Regional Airport to Central Wyoming Regional Airport is 2 hours and 51 minutes.

Flight carbon footprint between Alpena County Regional Airport (APN) and Central Wyoming Regional Airport (RIW)

On average, flying from Alpena to Riverton generates about 163 kg of CO2 per passenger, and 163 kilograms equals 360 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 Riverton

See the map of the shortest flight path between Alpena County Regional Airport (APN) and Central Wyoming Regional Airport (RIW).

Airport information

Origin Alpena County Regional Airport
City: Alpena, MI
Country: United States Flag of United States
IATA Code: APN
ICAO Code: KAPN
Coordinates: 45°4′41″N, 83°33′37″W
Destination Central Wyoming Regional Airport
City: Riverton, WY
Country: United States Flag of United States
IATA Code: RIW
ICAO Code: KRIW
Coordinates: 43°3′51″N, 108°27′35″W