How far is Casper from Chicago?
There are several ways to calculate distances between Chicago and Casper. Here are two common methods:Vincenty's formula (applied above)
- 949.022 miles
- 1527.304 kilometers
- 824.678 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
- 946.532 miles
- 1523.295 kilometers
- 822.514 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).
Estimated flight time from O'Hare International Airport (ORD) to Casper–Natrona County International Airport (CPR) is 2 hours 17 minutes.
Time difference and current local times
The time difference between Chicago and Casper is 1 hour. Casper is 1 hour behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 147 kg (325 pounds).
Chicago to Casper flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Casper (CPR).