How far is Waterloo, IA, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Waterloo (Waterloo Regional Airport) is 171 miles / 275 kilometers / 148 nautical miles.
The driving distance from Rockford (RFD) to Waterloo (ALO) is 190 miles / 305 kilometers, and travel time by car is about 4 hours 4 minutes.
Chicago Rockford International Airport – Waterloo Regional Airport
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Distance from Rockford to Waterloo
There are several ways to calculate the distance from Rockford to Waterloo. 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 Rockford to Waterloo?
The estimated flight time from Chicago Rockford International Airport to Waterloo Regional Airport is 49 minutes.
What is the time difference between Rockford and Waterloo?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Waterloo Regional Airport (ALO)
On average, flying from Rockford to Waterloo 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 Rockford to Waterloo
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Waterloo Regional Airport (ALO).
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 | Waterloo Regional Airport |
|---|---|
| City: | Waterloo, IA |
| Country: | United States |
| IATA Code: | ALO |
| ICAO Code: | KALO |
| Coordinates: | 42°33′25″N, 92°24′1″W |