npm install great-circle-distance --save

yarn add great-circle-distance

const { greatCircleDistance } = require("great-circle-distance");

const coords = {
    lat1: "12.9611159",
    lng1: "77.6362214",
    lat2: "12.9611159",
    lng2: "75.6362214"
};

greatCircleDistance(coords);
// => 216.723363263401 kms