Map of flight path and driving directions from Green Bay to Decatur.
Shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and Decatur Airport (DEC).
How far is Decatur from Green Bay?
There are several ways to calculate distances between Green Bay and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 323.190 miles
- 520.124 kilometers
- 280.845 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
- 323.519 miles
- 520.653 kilometers
- 281.130 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).
Time difference and current local times
There is no time difference between Green Bay and Decatur.
Green Bay, WI
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 73 kg (160 pounds).
Frequent Flyer Miles Calculator
Green Bay (GRB) → Decatur (DEC).