Air Miles Calculator

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

Flight distance from Newark to Rockford (New York Newark Liberty International Airport – Chicago Rockford International Airport) is 781 miles / 1257 kilometers / 679 nautical miles. Estimated flight time is 1 hour 58 minutes.

Driving distance from Newark (EWR) to Rockford (RFD) is 869 miles / 1399 kilometers and travel time by car is about 15 hours 12 minutes.

Map of flight path and driving directions from Newark to Rockford.

Shortest flight path between New York Newark Liberty International Airport (EWR) and Chicago Rockford International Airport (RFD).

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).

Airport information


A New York 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

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, NJ

 EST

Rockford, IL

 CST

Carbon dioxide emissions

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

Frequent Flyer Miles Calculator

Newark (EWR) → Rockford (RFD).

Distance:
781
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
781

Round trip?