Haversine Formula:
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The Haversine formula calculates the great-circle distance between two points on a sphere given their longitudes and latitudes. It's particularly useful for calculating distances between geographic coordinates on Earth.
The calculator uses the Haversine formula:
Where:
Explanation: The formula accounts for the spherical shape of the Earth to provide accurate distance calculations between any two points on the globe.
Details: Accurate distance calculation is essential for navigation systems, logistics planning, travel itinerary creation, and geographic analysis applications.
Tips: Enter latitude and longitude coordinates in decimal degrees format. Valid ranges: latitude -90 to 90, longitude -180 to 180. The calculator returns distance in miles.
Q1: How accurate is the Haversine formula?
A: The Haversine formula provides very accurate results for most practical purposes, with errors typically less than 0.5% for distances up to a few hundred miles.
Q2: Can I use this for driving distance?
A: This calculates straight-line (great-circle) distance. Driving distance may be longer due to roads, terrain, and routing constraints.
Q3: What coordinate format should I use?
A: Use decimal degrees format (e.g., 40.7128, -74.0060 for New York). Convert from degrees-minutes-seconds if necessary.
Q4: Why use miles instead of kilometers?
A: The calculator uses miles as specified, but the formula can be adapted for kilometers by changing the Earth's radius to 6371 km.
Q5: Are there limitations to this calculation?
A: The formula assumes a perfect sphere. Earth is slightly ellipsoidal, but the difference is negligible for most applications.