How far is Rockford from St Louis?
There are several ways to calculate distances between St Louis and Rockford. Here are two common methods:Vincenty's formula (applied above)
- 247.088 miles
- 397.649 kilometers
- 214.713 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
- 247.354 miles
- 398.077 kilometers
- 214.945 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 St. Louis Lambert International Airport (STL) to Chicago Rockford International Airport (RFD) is 58 minutes.
Time difference and current local times
There is no time difference between St Louis and Rockford.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 59 kg (130 pounds).
St Louis to Rockford flight map.
Frequent Flyer Miles Calculator
St Louis (STL) → Rockford (RFD).