Air Miles Calculator

Distance between Green Bay, WI (GRB) and Champaign, IL (CMI)

Distance from Green Bay to Champaign (Green Bay–Austin Straubel International Airport – University of Illinois Willard Airport) is 307 miles / 494 kilometers / 267 nautical miles.

How far is Champaign from Green Bay?

There are several ways to calculate distances between Green Bay and Champaign. Here are two common methods:

Vincenty's formula (applied above)
  • 306.954 miles
  • 493.995 kilometers
  • 266.736 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
  • 307.276 miles
  • 494.513 kilometers
  • 267.016 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 Green Bay–Austin Straubel International Airport (GRB) to University of Illinois Willard Airport (CMI) is 1 hour 4 minutes.

Time difference and current local times

There is no time difference between Green Bay and Champaign.

Time Difference

Green Bay
Champaign

Green Bay, WI

 CDT

Champaign, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 67 kg (149 pounds).

Airport information


A Green Bay–Austin Straubel International Airport
City: Green Bay, WI
Country: United States Flag of United States
IATA Code: GRB
ICAO Code: KGRB
Coordinates: 44°29′6″N, 88°7′46″W

B University of Illinois Willard Airport
City: Champaign, IL
Country: United States Flag of United States
IATA Code: CMI
ICAO Code: KCMI
Coordinates: 40°2′21″N, 88°16′41″W

Green Bay to Champaign flight path

Shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and University of Illinois Willard Airport (CMI).

Frequent Flyer Miles Calculator

Green Bay (GRB) → Champaign (CMI).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
307
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
307

Round trip?