How far is Oulu from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Oulu (Oulu Airport) is 4256 miles / 6849 kilometers / 3698 nautical miles.

Distance from Rockford to Oulu

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

Vincenty's formula (applied above)

• 4255.647 miles
• 6848.801 kilometers
• 3698.056 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

• 4243.448 miles
• 6829.168 kilometers
• 3687.456 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 Oulu?

The estimated flight time from Chicago Rockford International Airport to Oulu Airport is 8 hours and 33 minutes.

What is the time difference between Rockford and Oulu?

The time difference between Rockford and Oulu is 8 hours. Oulu is 8 hours ahead of Rockford.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Oulu Airport (OUL)

On average, flying from Rockford to Oulu generates about 488 kg of CO2 per passenger, and 488 kilograms equals 1 077 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to Oulu

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

Airport information

Origin	Chicago Rockford International Airport
City:	Rockford, IL
Country:	United States
IATA Code:	RFD
ICAO Code:	KRFD
Coordinates:	42°11′43″N, 89°5′49″W

Destination	Oulu Airport
City:	Oulu
Country:	Finland
IATA Code:	OUL
ICAO Code:	EFOU
Coordinates:	64°55′48″N, 25°21′16″E