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).
|A||New York Newark Liberty International Airport|
|B||Chicago Rockford International Airport|
Time difference and current local times
The time difference between Newark and Rockford is 1 hour. Rockford is 1 hour behind Newark.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 133 kg (293 pounds).
Frequent Flyer Miles Calculator
Newark (EWR) → Rockford (RFD).