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Latitude Longitude Distance Calculator

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Calculates the great-circle distance (shortest distance over the Earth's surface) between two points given their latitude and longitude coordinates.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Latitude of Point 1 (degrees), Longitude of Point 1 (degrees), Latitude of Point 2 (degrees), and Longitude of Point 2 (degrees) in the units shown.

Step 2

Read Longitude 2 in Radians, Latitude 2 in Radians, Longitude 1 in Radians, Latitude 1 in Radians, Difference in Longitude (radians), Central Angle (radians), Distance (kilometers), and Distance (miles) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Los Angeles to New York

Latitude of Point 1 (degrees): 34.0522 degrees; Longitude of Point 1 (degrees): -118.2437 degrees; Latitude of Point 2 (degrees): 40.7128 degrees; Longitude of Point 2 (degrees): -74.006 degrees

Longitude 2 in Radians: -1.291648366; Latitude 2 in Radians: 0.7105724077; Longitude 1 in Radians: -2.063741885; Latitude 1 in Radians: 0.5943230075; Difference in Longitude (radians): 0.7720935185; Central Angle (radians): 0.6177595754; Distance (kilometers): 3,935.746255 km; Distance (miles): 2,445.558586 miles

London to Paris

Latitude of Point 1 (degrees): 51.5074 degrees; Longitude of Point 1 (degrees): 0.1278 degrees; Latitude of Point 2 (degrees): 48.8566 degrees; Longitude of Point 2 (degrees): 2.3522 degrees

Longitude 2 in Radians: 0.04105363467; Latitude 2 in Radians: 0.8527085313; Longitude 1 in Radians: 0.002230530784; Latitude 1 in Radians: 0.8989737191; Difference in Longitude (radians): 0.03882310388; Central Angle (radians): 0.05251548234; Distance (kilometers): 334.576138 km; Distance (miles): 207.8959094 miles

Sydney to Tokyo

Latitude of Point 1 (degrees): -33.8688 degrees; Longitude of Point 1 (degrees): 151.2093 degrees; Latitude of Point 2 (degrees): 35.6895 degrees; Longitude of Point 2 (degrees): 139.6917 degrees

Longitude 2 in Radians: 2.438080103; Latitude 2 in Radians: 0.6228992834; Longitude 1 in Radians: 2.639100145; Latitude 1 in Radians: -0.5911220737; Difference in Longitude (radians): -0.2010200419; Central Angle (radians): 1.228475131; Distance (kilometers): 7,826.615058 km; Distance (miles): 4,863.231625 miles

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