How far is Champaign, IL, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Champaign (University of Illinois Willard Airport) is 155 miles / 249 kilometers / 135 nautical miles.
The driving distance from Rockford (RFD) to Champaign (CMI) is 190 miles / 305 kilometers, and travel time by car is about 3 hours 36 minutes.
Chicago Rockford International Airport – University of Illinois Willard Airport
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Distance from Rockford to Champaign
There are several ways to calculate the distance from Rockford to Champaign. Here are two standard methods:
Vincenty's formula (applied above)- 154.809 miles
- 249.141 kilometers
- 134.526 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 154.958 miles
- 249.381 kilometers
- 134.655 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).
How long does it take to fly from Rockford to Champaign?
The estimated flight time from Chicago Rockford International Airport to University of Illinois Willard Airport is 47 minutes.
What is the time difference between Rockford and Champaign?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and University of Illinois Willard Airport (CMI)
On average, flying from Rockford to Champaign generates about 48 kg of CO2 per passenger, and 48 kilograms equals 105 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rockford to Champaign
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and University of Illinois Willard Airport (CMI).
Airport information
| Origin | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States  |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″W |
| Destination | University of Illinois Willard Airport |
|---|---|
| City: | Champaign, IL |
| Country: | United States |
| IATA Code: | CMI |
| ICAO Code: | KCMI |
| Coordinates: | 40°2′21″N, 88°16′41″W |