Air Miles Calculator

Distance between Grand Rapids, MI (GRR) and Rockford, IL (RFD)

Distance from Grand Rapids to Rockford (Gerald R. Ford International Airport – Chicago Rockford International Airport) is 188 miles / 303 kilometers / 164 nautical miles.

How far is Rockford from Grand Rapids?

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

Vincenty's formula (applied above)
  • 188.472 miles
  • 303.317 kilometers
  • 163.778 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
  • 188.017 miles
  • 302.584 kilometers
  • 163.382 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 Gerald R. Ford International Airport (GRR) to Chicago Rockford International Airport (RFD) is 51 minutes.

Time difference and current local times

The time difference between Grand Rapids and Rockford is 1 hour. Rockford is 1 hour behind Grand Rapids.

Time Difference

Grand Rapids
Rockford

Grand Rapids, MI

 EST

Rockford, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 51 kg (112 pounds).

Airport information


A Gerald R. Ford International Airport
City: Grand Rapids, MI
Country: United States Flag of United States
IATA Code: GRR
ICAO Code: KGRR
Coordinates: 42°52′50″N, 85°31′22″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

Map

Grand Rapids to Rockford flight map.

Frequent Flyer Miles Calculator

Grand Rapids (GRR) → Rockford (RFD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
188
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
188

Round trip?