Air Miles Calculator logo

How far is Casper, WY, from Eastmain River?

The distance between Eastmain River (Eastmain River Airport) and Casper (Casper–Natrona County International Airport) is 1444 miles / 2324 kilometers / 1255 nautical miles.

The driving distance from Eastmain River (ZEM) to Casper (CPR) is 2146 miles / 3453 kilometers, and travel time by car is about 45 hours 17 minutes.

Eastmain River Airport – Casper–Natrona County International Airport

Distance arrow
1444
Miles
Distance arrow
2324
Kilometers
Distance arrow
1255
Nautical miles

Search flights

Distance from Eastmain River to Casper

There are several ways to calculate the distance from Eastmain River to Casper. Here are two standard methods:

Vincenty's formula (applied above)
  • 1444.099 miles
  • 2324.053 kilometers
  • 1254.888 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
  • 1440.743 miles
  • 2318.651 kilometers
  • 1251.971 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 Eastmain River to Casper?

The estimated flight time from Eastmain River Airport to Casper–Natrona County International Airport is 3 hours and 14 minutes.

Flight carbon footprint between Eastmain River Airport (ZEM) and Casper–Natrona County International Airport (CPR)

On average, flying from Eastmain River to Casper generates about 176 kg of CO2 per passenger, and 176 kilograms equals 388 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Eastmain River to Casper

See the map of the shortest flight path between Eastmain River Airport (ZEM) and Casper–Natrona County International Airport (CPR).

Airport information

Origin Eastmain River Airport
City: Eastmain River
Country: Canada Flag of Canada
IATA Code: ZEM
ICAO Code: CZEM
Coordinates: 52°13′35″N, 78°31′20″W
Destination Casper–Natrona County International Airport
City: Casper, WY
Country: United States Flag of United States
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″W