How far is Rockford, IL, from Perth?

The distance between Perth (Perth Airport) and Rockford (Chicago Rockford International Airport) is 10893 miles / 17531 kilometers / 9466 nautical miles.

Distance from Perth to Rockford

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

Vincenty's formula (applied above)

• 10893.071 miles
• 17530.698 kilometers
• 9465.820 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

• 10892.005 miles
• 17528.982 kilometers
• 9464.893 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 Perth to Rockford?

The estimated flight time from Perth Airport to Chicago Rockford International Airport is 21 hours and 7 minutes.

What is the time difference between Perth and Rockford?

The time difference between Perth and Rockford is 14 hours. Rockford is 14 hours behind Perth.

Flight carbon footprint between Perth Airport (PER) and Chicago Rockford International Airport (RFD)

On average, flying from Perth to Rockford generates about 1 444 kg of CO2 per passenger, and 1 444 kilograms equals 3 183 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Perth to Rockford

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

Airport information

Origin	Perth Airport
City:	Perth
Country:	Australia
IATA Code:	PER
ICAO Code:	YPPH
Coordinates:	31°56′25″S, 115°58′1″E

Destination	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