Air Miles Calculator

Distance between Newark, NJ (EWR) and Rockford, IL (RFD)

Distance from Newark to Rockford (Newark Liberty International Airport – Chicago Rockford International Airport) is 781 miles / 1257 kilometers / 679 nautical miles.

How far is Rockford from Newark?

There are several ways to calculate distances between Newark and Rockford. Here are two common methods:

Vincenty's formula (applied above)
  • 781.068 miles
  • 1257.007 kilometers
  • 678.729 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 779.102 miles
  • 1253.844 kilometers
  • 677.021 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).

Flight duration

Estimated flight time from Newark Liberty International Airport (EWR) to Chicago Rockford International Airport (RFD) is 1 hour 58 minutes.

Time difference and current local times

The time difference between Newark and Rockford is 1 hour. Rockford is 1 hour behind Newark.

Time Difference

Newark
Rockford

Newark, NJ

 EST

Rockford, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 133 kg (293 pounds).

Airport information


A Newark Liberty International Airport
City: Newark, NJ
Country: United States Flag of United States
IATA Code: EWR
ICAO Code: KEWR
Coordinates: 40°41′33″N, 74°10′7″W

B 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

Map

Newark to Rockford flight map.

Frequent Flyer Miles Calculator

Newark (EWR) → Rockford (RFD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
781
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
781

Round trip?