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How far is Zagreb from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Zagreb (Zagreb Airport) is 4834 miles / 7779 kilometers / 4200 nautical miles.

Chicago Rockford International Airport – Zagreb Airport

Distance arrow
4834
Miles
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7779
Kilometers
Distance arrow
4200
Nautical miles

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Distance from Rockford to Zagreb

There are several ways to calculate the distance from Rockford to Zagreb. Here are two standard methods:

Vincenty's formula (applied above)
  • 4833.595 miles
  • 7778.917 kilometers
  • 4200.279 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
  • 4820.643 miles
  • 7758.074 kilometers
  • 4189.025 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 Rockford to Zagreb?

The estimated flight time from Chicago Rockford International Airport to Zagreb Airport is 9 hours and 39 minutes.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Zagreb Airport (ZAG)

On average, flying from Rockford to Zagreb generates about 562 kg of CO2 per passenger, and 562 kilograms equals 1 240 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to Zagreb

See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Zagreb Airport (ZAG).

Airport information

Origin Chicago Rockford International Airport
City: Rockford, IL
Country: United States Flag of United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W
Destination Zagreb Airport
City: Zagreb
Country: Croatia Flag of Croatia
IATA Code: ZAG
ICAO Code: LDZA
Coordinates: 45°44′34″N, 16°4′7″E