# Distance between Green Bay, WI (GRB) and Chicago, IL (MDW)

Flight distance from Green Bay to Chicago (Green Bay–Austin Straubel International Airport – Chicago Midway International Airport) is 187 miles / 301 kilometers / 163 nautical miles. Estimated flight time is 51 minutes.

Driving distance from Green Bay (GRB) to Chicago (MDW) is 209 miles / 337 kilometers and travel time by car is about 3 hours 56 minutes.

## Map of flight path and driving directions from Green Bay to Chicago.

Shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and Chicago Midway International Airport (MDW).

## How far is Chicago from Green Bay?

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

Vincenty's formula (applied above)
• 187.296 miles
• 301.423 kilometers
• 162.755 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
• 187.457 miles
• 301.682 kilometers
• 162.895 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 Green Bay–Austin Straubel International Airport
City: Green Bay, WI
Country: United States
IATA Code: GRB
ICAO Code: KGRB
Coordinates: 44°29′6″N, 88°7′46″W

B Chicago Midway International Airport
City: Chicago, IL
Country: United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W

## Time difference and current local times

There is no time difference between Green Bay and Chicago.

CST

CST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 53 kg (116 pounds).

## Frequent Flyer Miles Calculator

Green Bay (GRB) → Chicago (MDW).

Distance:
187
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
187

Round trip?