Air Miles Calculator

Distance between Casper, WY (CPR) and Eau Claire, WI (EAU)

Flight distance from Casper to Eau Claire (Casper–Natrona County International Airport – Chippewa Valley Regional Airport) is 759 miles / 1221 kilometers / 660 nautical miles. Estimated flight time is 1 hour 56 minutes.

Driving distance from Casper (CPR) to Eau Claire (EAU) is 920 miles / 1480 kilometers and travel time by car is about 15 hours 31 minutes.

Map of flight path and driving directions from Casper to Eau Claire.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Chippewa Valley Regional Airport (EAU).

How far is Eau Claire from Casper?

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

Vincenty's formula (applied above)
  • 758.941 miles
  • 1221.397 kilometers
  • 659.502 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
  • 756.957 miles
  • 1218.204 kilometers
  • 657.778 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 Chippewa Valley Regional Airport
City: Eau Claire, WI
Country: United States Flag of United States
IATA Code: EAU
ICAO Code: KEAU
Coordinates: 44°51′56″N, 91°29′3″W

Time difference and current local times

The time difference between Casper and Eau Claire is 1 hour. Eau Claire is 1 hour ahead of Casper.

Time Difference

Casper, WY

 MST

Eau Claire, WI

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 131 kg (288 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → Eau Claire (EAU).

Distance:
759
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
759

Round trip?