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How far is Casper, WY, from Green Bay, WI?

The distance between Green Bay (Green Bay–Austin Straubel International Airport) and Casper (Casper–Natrona County International Airport) is 923 miles / 1485 kilometers / 802 nautical miles.

The driving distance from Green Bay (GRB) to Casper (CPR) is 1091 miles / 1756 kilometers, and travel time by car is about 19 hours 39 minutes.

Green Bay–Austin Straubel International Airport – Casper–Natrona County International Airport

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923
Miles
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1485
Kilometers
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802
Nautical miles

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Distance from Green Bay to Casper

There are several ways to calculate the distance from Green Bay to Casper. Here are two standard 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 planet.

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).

How long does it take to fly from Green Bay to Casper?

The estimated flight time from Green Bay–Austin Straubel International Airport to Casper–Natrona County International Airport is 2 hours and 14 minutes.

Flight carbon footprint between Green Bay–Austin Straubel International Airport (GRB) and Casper–Natrona County International Airport (CPR)

On average, flying from Green Bay to Casper generates about 145 kg of CO2 per passenger, and 145 kilograms equals 320 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 Casper

See the map of the shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and Casper–Natrona County International Airport (CPR).

Airport information

Origin 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
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