Air Miles Calculator

Distance between Casper, WY (CPR) and Green Bay, WI (GRB)

Flight distance from Casper to Green Bay (Casper–Natrona County International Airport – Green Bay–Austin Straubel International Airport) is 923 miles / 1485 kilometers / 802 nautical miles. Estimated flight time is 2 hours 14 minutes.

Driving distance from Casper (CPR) to Green Bay (GRB) is 1091 miles / 1756 kilometers and travel time by car is about 18 hours 33 minutes.

Map of flight path and driving directions from Casper to Green Bay.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Green Bay–Austin Straubel International Airport (GRB).

How far is Green Bay from Casper?

There are several ways to calculate distances between Casper and Green Bay. Here are two common methods:

Vincenty's formula (applied above)
  • 922.848 miles
  • 1485.180 kilometers
  • 801.933 nautical miles

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

Haversine formula
  • 920.389 miles
  • 1481.222 kilometers
  • 799.796 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).

Airport information


A 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

B Green Bay–Austin Straubel International Airport
City: Green Bay, WI
Country: United States Flag of United States
IATA Code: GRB
ICAO Code: KGRB
Coordinates: 44°29′6″N, 88°7′46″W

Time difference and current local times

The time difference between Casper and Green Bay is 1 hour. Green Bay is 1 hour ahead of Casper.

Time Difference

Casper, WY

 MST

Green Bay, WI

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 145 kg (320 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → Green Bay (GRB).

Distance:
923
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
923

Round trip?