Google Maps - How to get the distance between two point in metre?

Question

I have these coordinate :

(45.463688, 9.18814) 
(46.0438317, 9.75936230000002)

and I need (trought Google API V3, I think) to get the distance between those 2 points in metre. How can I do it?

you can use distance matrix api if you are using it for distance and travel time. — Surjeet Rajput, Dec 03 '16 at 07:58
Full answer at https://stackoverflow.com/questions/1502590/calculate-distance-between-two-points-in-google-maps-v3/50885562#50885562 — TarangP, Jun 16 '18 at 06:39

score 125 · Accepted Answer · edited Apr 11 '16 at 14:00

125

If you're looking to use the v3 google maps API, here is a function to use: Note: you must add &libraries=geometry to your script source

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&libraries=geometry"></script>

<script>
var p1 = new google.maps.LatLng(45.463688, 9.18814);
var p2 = new google.maps.LatLng(46.0438317, 9.75936230000002);

alert(calcDistance(p1, p2));

//calculates distance between two points in km's
function calcDistance(p1, p2) {
  return (google.maps.geometry.spherical.computeDistanceBetween(p1, p2) / 1000).toFixed(2);
}

</script>

edited Apr 11 '16 at 14:00

pradeepcep

902
2
8
24

answered Nov 03 '11 at 15:43

Roman Goyenko

6,965
5
48
81

I added usage example, you need to pass 2 coords. It worked for me, returned 78.35 – Roman Goyenko Nov 03 '11 at 16:21
3

please don't forget to mark question as answered to help people in the future to find the right answer. – Roman Goyenko Nov 04 '11 at 15:26
1

Does this return the value in miles or km? – Zabs Dec 07 '11 at 14:53
4

As the comment says: //calculates distance between two points in km's – Roman Goyenko Dec 07 '11 at 15:48
`console.log(calcDistance("45.463688, 9.18814", "46.0438317, 9.75936230000002"));` it returns NaN because we providing strings to `calDistance`. Try to make it `console.log(calcDistance(45.463688, 9.18814, 46.0438317, 9.75936230000002));` – Nishant Nawarkhede Mar 12 '14 at 09:21
What if you are passing the values using arrays? origLat[j], origLng[j]? IE returns NaN - http://stackoverflow.com/questions/25145901/ie-google-computedistancebetween-returns-nan – kronus Aug 06 '14 at 17:39
you can also use distance matrix api if you are using it for distance and travel time. – Surjeet Rajput Dec 03 '16 at 07:57
it does conflict with , – Saurabh Apr 24 '17 at 12:22
@Saurabh you just need to add &libraries=geometry to your own script reference, don't double up. – germankiwi Apr 26 '17 at 04:14

PiRX · Answer 2 · 2011-11-03T16:16:25.733

4

I think you could do without any specific API, and calculate distance with plain Javascript:

This site has good info about geographical calculations and Javascript sample for distance calculation.

Ok, quick glance at Google API page and it seems, you could do it by:

Call DirectionsService().route() to get DirectionsResult with routes
For one or each route go through its legs property and calculate sum of distances

edited Nov 03 '11 at 16:16

answered Nov 03 '11 at 15:39

PiRX

3,515
1
19
18

Thank you for the first link. Calculation of close distances can be optimized much using aproximate formulas – Dan Jun 05 '13 at 09:33

score 1 · Answer 3 · edited May 23 '17 at 12:26

1

http://www.csgnetwork.com/gpsdistcalc.html

Has nothing to do with coding btw

EDIT if you're looking for some code

Calculate distance between two points in google maps V3

edited May 23 '17 at 12:26

Community

1
1

answered Nov 03 '11 at 15:37

Rob

4,927
12
49
54

score 1 · Answer 4 · edited May 23 '17 at 10:31

1

This is primarily done with math outside of the google api, so you shouldn't need to use the API for anything other than finding the correct coordinates.

Knowing that, here's a link to a previously answered question relating to Javascript.

Calculate distance between 2 GPS coordinates

edited May 23 '17 at 10:31

Community

1
1

answered Nov 03 '11 at 15:42

Pixelmixer

319
1
11

score 1 · Answer 5 · answered Nov 03 '11 at 15:47

1

Try this

 CLLocationCoordinate2D coord1;
 coord1.latitude = 45.463688;
 coord1.longitude = 9.18814;
 CLLocation *loc1  = [[[CLLocation alloc] initWithLatitude:coord1.latitude longitude:coord1.longitude] autorelease];

 CLLocationCoordinate2D coord2;
 coord2.latitude = 46.0438317;
 coord2.longitude = 9.75936230000002;
 CLLocation *loc2  = [[[CLLocation alloc] initWithLatitude:46.0438317 longitude:9.75936230000002] autorelease];

 CLLocationDistance d1 = [loc1 distanceFromLocation:loc2];

answered Nov 03 '11 at 15:47

Tommaso

155
2
10

1

How to get route distance between 2 points, this just gives the direct distance(in physics literature: displacement), How to get path distance – Mehul Thakkar Mar 10 '16 at 13:11
that's objective C :) the question is about the Javascript API for google maps – Martijn Scheffer Mar 28 '16 at 17:00
Please provide explanation instead of "Try this". – Tõnu Samuel Jan 04 '18 at 03:09

score 0 · Answer 6 · answered Sep 13 '17 at 04:02

Try this:

const const toRadians = (val) => {
    return val * Math.PI / 180;
}
const toDegrees = (val) => {
    return val * 180 / Math.PI;
}
// Calculate a point winthin a circle
// circle ={center:LatLong, radius: number} // in metres
const pointInsideCircle = (point, circle) => {
    let center = circle.center;
    let distance = distanceBetween(point, center);

    //alert(distance);
    return distance < circle.radius;
};

const distanceBetween = (point1, point2) => {
   //debugger;
   var R = 6371e3; // metres
   var φ1 = toRadians(point1.latitude);
   var φ2 = toRadians(point2.latitude);
   var Δφ = toRadians(point2.latitude - point1.latitude);
   var Δλ = toRadians(point2.longitude - point1.longitude);

   var a = Math.sin(Δφ / 2) * Math.sin(Δφ / 2) +
           Math.cos(φ1) * Math.cos(φ2) *
           Math.sin(Δλ / 2) * Math.sin(Δλ / 2);
   var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));

   return R * c;
}

References: http://www.movable-type.co.uk/scripts/latlong.html

Please improve your answer. Why it is better, how it works, etc. "Try this" is not enough. Stackoverflow is not about trying things blindly but reading and understanding how things work. Still thank you for contribution :) — Tõnu Samuel, Jan 04 '18 at 03:08

score 0 · Answer 7 · answered Jan 18 '21 at 04:12

Are you referring to distance as in length of the entire path or you want to know only the displacement (straight line distance)? I see no one is pointing the difference between distance and displacement here. For distance calculate each route point given by JSON/XML data, as for displacement there is a built-in solution using Spherical class.

score 0 · Answer 8 · answered Jan 18 '21 at 04:16

Are you referring to distance as in length of the entire path or you want to know only the displacement (straight line distance)? I see no one is pointing the difference between distance and displacement here. For distance calculate each route point given by JSON/XML data, as for displacement there is a built-in solution using Spherical class. The idea is if your are referring to distance then you just use the computeDistanceBetween on each path point and concatenate it.

//calculates distance between two points in km's
function calcDistance(p1, p2) {
  return (google.maps.geometry.spherical.computeDistanceBetween(p1, p2) / 1000).toFixed(2);
}

Google Maps - How to get the distance between two point in metre?

8 Answers8

Linked