Map of flight path and driving directions from South Bend to Rockford.
Shortest flight path between South Bend International Airport (SBN) and Chicago Rockford International Airport (RFD).
How far is Rockford from South Bend?
There are several ways to calculate distances between South Bend and Rockford. Here are two common methods:Vincenty's formula (applied above)
- 147.099 miles
- 236.732 kilometers
- 127.825 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
- 146.743 miles
- 236.160 kilometers
- 127.516 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).
Time difference and current local times
The time difference between South Bend and Rockford is 1 hour. Rockford is 1 hour behind South Bend.
South Bend, IN
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 47 kg (103 pounds).
Frequent Flyer Miles Calculator
South Bend (SBN) → Rockford (RFD).