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How far is Rockford, IL, from Riverton, WY?

The distance between Riverton (Central Wyoming Regional Airport) and Rockford (Chicago Rockford International Airport) is 987 miles / 1588 kilometers / 857 nautical miles.

The driving distance from Riverton (RIW) to Rockford (RFD) is 1179 miles / 1897 kilometers, and travel time by car is about 21 hours 48 minutes.

Central Wyoming Regional Airport – Chicago Rockford International Airport

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987
Miles
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1588
Kilometers
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857
Nautical miles

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Distance from Riverton to Rockford

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

Vincenty's formula (applied above)
  • 986.553 miles
  • 1587.703 kilometers
  • 857.291 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
  • 983.950 miles
  • 1583.513 kilometers
  • 855.029 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 Riverton to Rockford?

The estimated flight time from Central Wyoming Regional Airport to Chicago Rockford International Airport is 2 hours and 22 minutes.

Flight carbon footprint between Central Wyoming Regional Airport (RIW) and Chicago Rockford International Airport (RFD)

On average, flying from Riverton to Rockford generates about 150 kg of CO2 per passenger, and 150 kilograms equals 330 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Riverton to Rockford

See the map of the shortest flight path between Central Wyoming Regional Airport (RIW) and Chicago Rockford International Airport (RFD).

Airport information

Origin Central Wyoming Regional Airport
City: Riverton, WY
Country: United States Flag of United States
IATA Code: RIW
ICAO Code: KRIW
Coordinates: 43°3′51″N, 108°27′35″W
Destination 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