Air Miles Calculator

Distance between Waterloo, IA (ALO) and Rockford, IL (RFD)

Distance from Waterloo to Rockford (Waterloo Regional Airport – Chicago Rockford International Airport) is 171 miles / 275 kilometers / 148 nautical miles.

How far is Rockford from Waterloo?

There are several ways to calculate distances between Waterloo and Rockford. Here are two common 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 earth.

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).

Flight duration

Estimated flight time from Waterloo Regional Airport (ALO) to Chicago Rockford International Airport (RFD) is 49 minutes.

Time difference and current local times

There is no time difference between Waterloo and Rockford.

Time Difference

Waterloo
Rockford

Waterloo, IA

 CDT

Rockford, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 49 kg (107 pounds).

Airport information


A Waterloo Regional Airport
City: Waterloo, IA
Country: United States Flag of United States
IATA Code: ALO
ICAO Code: KALO
Coordinates: 42°33′25″N, 92°24′1″W

B Chicago Rockford International Airport
City: Rockford, IL
Country: United States Flag of United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W

Waterloo to Rockford flight path

Shortest flight path between Waterloo Regional Airport (ALO) and Chicago Rockford International Airport (RFD).

Frequent Flyer Miles Calculator

Waterloo (ALO) → Rockford (RFD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
171
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
171

Round trip?