How far is Rockford from Denver?
There are several ways to calculate distances between Denver and Rockford. Here are two common methods:Vincenty's formula (applied above)
- 828.472 miles
- 1333.296 kilometers
- 719.922 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
- 826.472 miles
- 1330.078 kilometers
- 718.184 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 Denver International Airport (DEN) to Chicago Rockford International Airport (RFD) is 2 hours 4 minutes.
Time difference and current local times
The time difference between Denver and Rockford is 1 hour. Rockford is 1 hour ahead of Denver.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 137 kg (303 pounds).
Denver to Rockford flight map.
Frequent Flyer Miles Calculator
Denver (DEN) → Rockford (RFD).