Air Miles Calculator

Distance between Green Bay, WI (GRB) and Quincy, IL (UIN)

Flight distance from Green Bay to Quincy (Green Bay–Austin Straubel International Airport – Quincy Regional Airport) is 351 miles / 564 kilometers / 305 nautical miles. Estimated flight time is 1 hour 9 minutes.

Driving distance from Green Bay (GRB) to Quincy (UIN) is 450 miles / 725 kilometers and travel time by car is about 8 hours 15 minutes.

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

Shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and Quincy Regional Airport (UIN).

How far is Quincy from Green Bay?

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

Vincenty's formula (applied above)
  • 350.680 miles
  • 564.365 kilometers
  • 304.733 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
  • 350.792 miles
  • 564.546 kilometers
  • 304.830 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 Flag of United States
IATA Code: GRB
ICAO Code: KGRB
Coordinates: 44°29′6″N, 88°7′46″W

B Quincy Regional Airport
City: Quincy, IL
Country: United States Flag of United States
IATA Code: UIN
ICAO Code: KUIN
Coordinates: 39°56′33″N, 91°11′40″W

Time difference and current local times

There is no time difference between Green Bay and Quincy.

Time Difference

Green Bay, WI

 CST

Quincy, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 77 kg (169 pounds).

Frequent Flyer Miles Calculator

Green Bay (GRB) → Quincy (UIN).

Distance:
351
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
351

Round trip?