Calculations with different methods
- 4270.768 miles
- 6873.135 kilometers
- 3711.196 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
- 4258.707 miles
- 6853.725 kilometers
- 3700.716 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from O'Hare International Airport (ORD) to Copenhagen Airport (CPH) is 8 hours 35 minutes.
Time difference and current local times
The time difference between Chicago and Copenhagen is 7 hours. Copenhagen is 7 hours ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 522 kg (1 152 pounds).
Chicago to Copenhagen flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Copenhagen (CPH).