Air Miles Calculator

Distance between Memphis, TN (MEM) and Rockford, IL (RFD)

Flight distance from Memphis to Rockford (Memphis International Airport – Chicago Rockford International Airport) is 496 miles / 798 kilometers / 431 nautical miles. Estimated flight time is 1 hour 26 minutes.

Driving distance from Memphis (MEM) to Rockford (RFD) is 584 miles / 940 kilometers and travel time by car is about 10 hours 5 minutes.

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).

Airport information


A Memphis International Airport
City: Memphis, TN
Country: United States Flag of United States
IATA Code: MEM
ICAO Code: KMEM
Coordinates: 35°2′32″N, 89°58′36″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

There is no time difference between Memphis and Rockford.

Time Difference

Memphis, TN

 CST

Rockford, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 98 kg (216 pounds).

Frequent Flyer Miles Calculator

Memphis (MEM) → Rockford (RFD).

Distance:
496
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
496

Round trip?