# Distance between Cedar Rapids, IA (CID) and Rockford, IL (RFD)

Flight distance from Cedar Rapids to Rockford (The Eastern Iowa Airport – Chicago Rockford International Airport) is 136 miles / 219 kilometers / 118 nautical miles. Estimated flight time is 45 minutes.

Driving distance from Cedar Rapids (CID) to Rockford (RFD) is 187 miles / 301 kilometers and travel time by car is about 3 hours 24 minutes.

## Map of flight path and driving directions from Cedar Rapids to Rockford.

Shortest flight path between The Eastern Iowa Airport (CID) and Chicago Rockford International Airport (RFD).

## How far is Rockford from Cedar Rapids?

There are several ways to calculate distances between Cedar Rapids and Rockford. Here are two common methods:

Vincenty's formula (applied above)
• 136.160 miles
• 219.128 kilometers
• 118.320 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
• 135.816 miles
• 218.575 kilometers
• 118.021 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).

## Airport information

A The Eastern Iowa Airport
City: Cedar Rapids, IA
Country: United States
IATA Code: CID
ICAO Code: KCID
Coordinates: 41°53′4″N, 91°42′38″W

B 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

## Time difference and current local times

There is no time difference between Cedar Rapids and Rockford.

CST

CST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 45 kg (99 pounds).

## Frequent Flyer Miles Calculator

Cedar Rapids (CID) → Rockford (RFD).

Distance:
136
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
136

Round trip?