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How far is Chicago, IL, from Kolkata?

The distance between Kolkata (Netaji Subhas Chandra Bose International Airport) and Chicago (Chicago O'Hare International Airport) is 7978 miles / 12839 kilometers / 6932 nautical miles.

Netaji Subhas Chandra Bose International Airport – Chicago O'Hare International Airport

Distance arrow
7978
Miles
Distance arrow
12839
Kilometers
Distance arrow
6932
Nautical miles
Flight time duration
15 h 36 min
Time Difference
11 h 30 min
CO2 emission
995 kg

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Distance from Kolkata to Chicago

There are several ways to calculate the distance from Kolkata to Chicago. Here are two standard methods:

Vincenty's formula (applied above)
  • 7977.523 miles
  • 12838.579 kilometers
  • 6932.278 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
  • 7964.990 miles
  • 12818.409 kilometers
  • 6921.387 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 Chicago?

The estimated flight time from Netaji Subhas Chandra Bose International Airport to Chicago O'Hare International Airport is 15 hours and 36 minutes.

Flight carbon footprint between Netaji Subhas Chandra Bose International Airport (CCU) and Chicago O'Hare International Airport (ORD)

On average, flying from Kolkata to Chicago generates about 995 kg of CO2 per passenger, and 995 kilograms equals 2 194 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Kolkata to Chicago

See the map of the shortest flight path between Netaji Subhas Chandra Bose International Airport (CCU) and Chicago O'Hare International Airport (ORD).

Airport information

Origin Netaji Subhas Chandra Bose International Airport
City: Kolkata
Country: India Flag of India
IATA Code: CCU
ICAO Code: VECC
Coordinates: 22°39′16″N, 88°26′48″E
Destination Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W