How far is Rockford, IL, from Sydney?

The distance between Sydney (Sydney Airport) and Rockford (Chicago Rockford International Airport) is 9174 miles / 14765 kilometers / 7972 nautical miles.

Distance from Sydney to Rockford

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

Vincenty's formula (applied above)

• 9174.357 miles
• 14764.696 kilometers
• 7972.298 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

• 9177.585 miles
• 14769.891 kilometers
• 7975.103 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 Sydney to Rockford?

The estimated flight time from Sydney Airport to Chicago Rockford International Airport is 17 hours and 52 minutes.

What is the time difference between Sydney and Rockford?

The time difference between Sydney and Rockford is 17 hours. Rockford is 17 hours behind Sydney.

Flight carbon footprint between Sydney Airport (SYD) and Chicago Rockford International Airport (RFD)

On average, flying from Sydney to Rockford generates about 1 174 kg of CO2 per passenger, and 1 174 kilograms equals 2 588 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Sydney to Rockford

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

Airport information

Origin	Sydney Airport
City:	Sydney
Country:	Australia
IATA Code:	SYD
ICAO Code:	YSSY
Coordinates:	33°56′45″S, 151°10′37″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