How far is Rockford, IL, from Kolkata?
The distance between Kolkata (Netaji Subhas Chandra Bose International Airport) and Rockford (Chicago Rockford International Airport) is 7966 miles / 12820 kilometers / 6922 nautical miles.
Netaji Subhas Chandra Bose International Airport – Chicago Rockford International Airport
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Distance from Kolkata to Rockford
There are several ways to calculate the distance from Kolkata to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 7965.901 miles
- 12819.875 kilometers
- 6922.179 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- 7953.354 miles
- 12799.683 kilometers
- 6911.276 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 Kolkata to Rockford?
The estimated flight time from Netaji Subhas Chandra Bose International Airport to Chicago Rockford International Airport is 15 hours and 34 minutes.
What is the time difference between Kolkata and Rockford?
Flight carbon footprint between Netaji Subhas Chandra Bose International Airport (CCU) and Chicago Rockford International Airport (RFD)
On average, flying from Kolkata to Rockford generates about 993 kg of CO2 per passenger, and 993 kilograms equals 2 190 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Kolkata to Rockford
See the map of the shortest flight path between Netaji Subhas Chandra Bose International Airport (CCU) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Netaji Subhas Chandra Bose International Airport |
|---|---|
| City: | Kolkata |
| Country: | India  |
| IATA Code: | CCU |
| ICAO Code: | VECC |
| Coordinates: | 22°39′16″N, 88°26′48″E |
| 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 |