Calculations with different methods
- 642.040 miles
- 1033.263 kilometers
- 557.917 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
- 641.035 miles
- 1031.646 kilometers
- 557.044 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 Richmond International Airport (RIC) is 1 hour 42 minutes.
Time difference and current local times
The time difference between Chicago and Richmond is 1 hour. Richmond is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 107 kg (235 pounds).
Chicago to Richmond flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Richmond (RIC).