Air Miles Calculator logo

How far is Pärnu from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Pärnu (Pärnu Airport) is 4528 miles / 7288 kilometers / 3935 nautical miles.

Chicago Rockford International Airport – Pärnu Airport

Distance arrow
4528
Miles
Distance arrow
7288
Kilometers
Distance arrow
3935
Nautical miles

Search flights

Distance from Rockford to Pärnu

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

Vincenty's formula (applied above)
  • 4528.365 miles
  • 7287.697 kilometers
  • 3935.042 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
  • 4515.389 miles
  • 7266.815 kilometers
  • 3923.766 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 Pärnu?

The estimated flight time from Chicago Rockford International Airport to Pärnu Airport is 9 hours and 4 minutes.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Pärnu Airport (EPU)

On average, flying from Rockford to Pärnu generates about 523 kg of CO2 per passenger, and 523 kilograms equals 1 153 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to Pärnu

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

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 Pärnu Airport
City: Pärnu
Country: Estonia Flag of Estonia
IATA Code: EPU
ICAO Code: EEPU
Coordinates: 58°25′8″N, 24°28′22″E