How far is Rockford from Lafayette?
There are several ways to calculate distances between Lafayette and Rockford. Here are two common methods:Vincenty's formula (applied above)
- 842.198 miles
- 1355.386 kilometers
- 731.850 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
- 843.818 miles
- 1357.994 kilometers
- 733.258 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 Lafayette Regional Airport (LFT) to Chicago Rockford International Airport (RFD) is 2 hours 5 minutes.
Time difference and current local times
There is no time difference between Lafayette and Rockford.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 139 kg (306 pounds).
Lafayette to Rockford flight map.
Frequent Flyer Miles Calculator
Lafayette (LFT) → Rockford (RFD).