How far is Rockford, IL, from San Jose, CA?
The distance between San Jose (San Jose International Airport) and Rockford (Chicago Rockford International Airport) is 1768 miles / 2845 kilometers / 1536 nautical miles.
The driving distance from San Jose (SJC) to Rockford (RFD) is 2101 miles / 3382 kilometers, and travel time by car is about 36 hours 25 minutes.
San Jose International Airport – Chicago Rockford International Airport
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Distance from San Jose to Rockford
There are several ways to calculate the distance from San Jose to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 1767.853 miles
- 2845.084 kilometers
- 1536.222 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- 1763.709 miles
- 2838.415 kilometers
- 1532.621 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 San Jose to Rockford?
The estimated flight time from San Jose International Airport to Chicago Rockford International Airport is 3 hours and 50 minutes.
What is the time difference between San Jose and Rockford?
The time difference between San Jose and Rockford is 2 hours. Rockford is 2 hours ahead of San Jose.
Flight carbon footprint between San Jose International Airport (SJC) and Chicago Rockford International Airport (RFD)
On average, flying from San Jose to Rockford generates about 198 kg of CO2 per passenger, and 198 kilograms equals 436 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from San Jose to Rockford
See the map of the shortest flight path between San Jose International Airport (SJC) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | San Jose International Airport |
|---|---|
| City: | San Jose, CA |
| Country: | United States  |
| IATA Code: | SJC |
| ICAO Code: | KSJC |
| Coordinates: | 37°21′45″N, 121°55′44″W |
| Destination | 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 |