How far is Rockford, IL, from Waterloo, IA?
The distance between Waterloo (Waterloo Regional Airport) and Rockford (Chicago Rockford International Airport) is 171 miles / 275 kilometers / 148 nautical miles.
The driving distance from Waterloo (ALO) to Rockford (RFD) is 190 miles / 306 kilometers, and travel time by car is about 3 hours 59 minutes.
Waterloo Regional Airport – Chicago Rockford International Airport
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Distance from Waterloo to Rockford
There are several ways to calculate the distance from Waterloo to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 170.864 miles
- 274.979 kilometers
- 148.477 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- 170.427 miles
- 274.275 kilometers
- 148.097 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 Waterloo to Rockford?
The estimated flight time from Waterloo Regional Airport to Chicago Rockford International Airport is 49 minutes.
What is the time difference between Waterloo and Rockford?
Flight carbon footprint between Waterloo Regional Airport (ALO) and Chicago Rockford International Airport (RFD)
On average, flying from Waterloo to Rockford generates about 50 kg of CO2 per passenger, and 50 kilograms equals 111 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Waterloo to Rockford
See the map of the shortest flight path between Waterloo Regional Airport (ALO) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Waterloo Regional Airport |
|---|---|
| City: | Waterloo, IA |
| Country: | United States  |
| IATA Code: | ALO |
| ICAO Code: | KALO |
| Coordinates: | 42°33′25″N, 92°24′1″W |
| Destination | 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 |