How far is Grayling, AK, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Grayling (Grayling Airport) is 3113 miles / 5009 kilometers / 2705 nautical miles.
The driving distance from Rockford (RFD) to Grayling (KGX) is 3987 miles / 6417 kilometers, and travel time by car is about 130 hours 12 minutes.
Chicago Rockford International Airport – Grayling Airport
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Distance from Rockford to Grayling
There are several ways to calculate the distance from Rockford to Grayling. Here are two standard methods:
Vincenty's formula (applied above)- 3112.639 miles
- 5009.307 kilometers
- 2704.809 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 3104.406 miles
- 4996.057 kilometers
- 2697.655 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).
How long does it take to fly from Rockford to Grayling?
The estimated flight time from Chicago Rockford International Airport to Grayling Airport is 6 hours and 23 minutes.
What is the time difference between Rockford and Grayling?
The time difference between Rockford and Grayling is 3 hours. Grayling is 3 hours behind Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Grayling Airport (KGX)
On average, flying from Rockford to Grayling generates about 348 kg of CO2 per passenger, and 348 kilograms equals 767 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rockford to Grayling
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Grayling Airport (KGX).
Airport information
| Origin | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States  |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″W |
| Destination | Grayling Airport |
|---|---|
| City: | Grayling, AK |
| Country: | United States |
| IATA Code: | KGX |
| ICAO Code: | PAGX |
| Coordinates: | 62°53′42″N, 160°3′58″W |