How to calculate distance between two points in google maps V3?

Posted by Editorial Staff | Updated on January 30, 2020

How to calculate distance between two points in google maps V3? If you want to calculate it yourself, then you can use the Haversine formula:

var rad = function(x) {

return x * Math.PI / 180;

};

var getDistance = function(p1, p2) {

var R = 6378137; // Earth’s mean radius in meter

var dLat = rad(p2.lat() - p1.lat());

var dLong = rad(p2.lng() - p1.lng());

var a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +

Math.cos(rad(p1.lat())) * Math.cos(rad(p2.lat())) *

Math.sin(dLong / 2) * Math.sin(dLong / 2);

var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));

var d = R * c;

return d; // returns the distance in meter

};

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How to calculate distance between two points in google maps V3?

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