Map of flight path and driving directions from Memphis to Rockford.
Shortest flight path between Memphis International Airport (MEM) and Chicago Rockford International Airport (RFD).
How far is Rockford from Memphis?
There are several ways to calculate distances between Memphis and Rockford. Here are two common methods:Vincenty's formula (applied above)
- 495.678 miles
- 797.716 kilometers
- 430.732 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
- 496.492 miles
- 799.026 kilometers
- 431.440 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).
Time difference and current local times
There is no time difference between Memphis and Rockford.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 98 kg (216 pounds).
Frequent Flyer Miles Calculator
Memphis (MEM) → Rockford (RFD).