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How far is Green Bay, WI, from Decatur, IL?

The distance between Decatur (Decatur Airport) and Green Bay (Green Bay–Austin Straubel International Airport) is 323 miles / 520 kilometers / 281 nautical miles.

The driving distance from Decatur (DEC) to Green Bay (GRB) is 367 miles / 590 kilometers, and travel time by car is about 7 hours 21 minutes.

Decatur Airport – Green Bay–Austin Straubel International Airport

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323
Miles
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520
Kilometers
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281
Nautical miles

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Distance from Decatur to Green Bay

There are several ways to calculate the distance from Decatur to Green Bay. Here are two standard 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 planet.

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).

How long does it take to fly from Decatur to Green Bay?

The estimated flight time from Decatur Airport to Green Bay–Austin Straubel International Airport is 1 hour and 6 minutes.

What is the time difference between Decatur and Green Bay?

There is no time difference between Decatur and Green Bay.

Flight carbon footprint between Decatur Airport (DEC) and Green Bay–Austin Straubel International Airport (GRB)

On average, flying from Decatur to Green Bay generates about 73 kg of CO2 per passenger, and 73 kilograms equals 160 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Decatur to Green Bay

See the map of the shortest flight path between Decatur Airport (DEC) and Green Bay–Austin Straubel International Airport (GRB).

Airport information

Origin Decatur Airport
City: Decatur, IL
Country: United States Flag of United States
IATA Code: DEC
ICAO Code: KDEC
Coordinates: 39°50′4″N, 88°51′56″W
Destination 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