How to calculate distance between two locations using their longitude and latitude value

Question

Here my code I used below code to calculate the distance between two location using their latitude and longitude. It is giving wrong distance. sometimes getting right and sometimes getting irrelevant distance.

We are getting lat1 and lng1 from database.

//getting lat2 and lng2 from GPS as below

public class MyLocationListener implements LocationListener {

  @Override
  public void onLocationChanged(Location loc)
  {
    lat2=loc.getLatitude();
    lng2=loc.getLongitude();
    String Text = "My current location is: " +"Latitud = "+ loc.getLatitude() +"Longitud = " + loc.getLongitude();

    //System.out.println("Lat & Lang form Loc"+Text);
    //Toast.makeText( getApplicationContext(), Text,Toast.LENGTH_SHORT).show();
  }

  @Override
  public void onProviderDisabled(String provider)
  {
  }

  @Override
  public void onProviderEnabled(String provider)
  {
  }

  @Override
  public void onStatusChanged(String provider, int status, Bundle extras)
  {
  }


  //Calculating distance
  double earthRadius = 3958.75;

  double dLat = Math.toRadians(lat1-lat2);
  double dLng = Math.toRadians(lng1-lng2);
  double a = Math.sin(dLat/2) * Math.sin(dLat/2) +
             Math.cos(Math.toRadians(lat2)) * Math.cos(Math.toRadians(lat1)) *
             Math.sin(dLng/2) * Math.sin(dLng/2);
  double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
  double dist = earthRadius * c;

score 96 · Answer 1 · edited Aug 29 '17 at 14:50

96

There is an android.location.Location.distanceBetween() method which does this quite well.

Android Developer Docs: Location

edited Aug 29 '17 at 14:50

Rick

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answered Aug 08 '11 at 12:18

Nikolay Elenkov

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2

is this aerial or onroad distance ? – Rajat Gupta Apr 05 '17 at 07:21
Probably Aerial – Pulkit Sep 01 '17 at 08:15
5

Definitely aerial :) – MilaDroid Jul 20 '18 at 18:45

score 85 · Accepted Answer · edited Jan 13 '21 at 09:54

85

Here getting distance in miles (mi)

private double distance(double lat1, double lon1, double lat2, double lon2) {
    double theta = lon1 - lon2;
    double dist = Math.sin(deg2rad(lat1)) 
                    * Math.sin(deg2rad(lat2))
                    + Math.cos(deg2rad(lat1))
                    * Math.cos(deg2rad(lat2))
                    * Math.cos(deg2rad(theta));
    dist = Math.acos(dist);
    dist = rad2deg(dist);
    dist = dist * 60 * 1.1515;
    return (dist);
}

private double deg2rad(double deg) {
    return (deg * Math.PI / 180.0);
}

private double rad2deg(double rad) {
    return (rad * 180.0 / Math.PI);
}

edited Jan 13 '21 at 09:54

Diadantic

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answered Aug 08 '11 at 12:16

Rasel

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can we add distance to latlng to get distance latng – Prasad Sep 05 '15 at 07:17
1

It would be nice if you added Units in your answer. – Basanth Jul 24 '16 at 08:39
11

i think this output units is Miles, you can convert as kilometers with this formula-> km =mi / 0.62137; – tej shah Jul 13 '17 at 10:53
why multiplying by 60 and 1.1515 --> dist = dist * 60 * 1.1515; – Swaminathan V Oct 22 '18 at 09:59
Best Distance calculation code found in whole stack. Very Accurate. But please explain each step. Can't understand what you did. Thanks for Share!. – Dinith Rukshan Kumara Nov 13 '18 at 19:17
This method returns in miles. Since given a in degrees (and fractions of a degree), then there are 60 nautical miles to one degree, hence 60 * 1.1515 statute miles, and 60 * 1.1515 * 1.609344 kilometres to one degree. – Krishnarjun Banoth Nov 17 '18 at 11:46
@KrishnarjunBanoth I also checked this method and it returns in miles , Do you have any improved version of this method which return distance in kilometres. – xaif Oct 25 '19 at 05:16

score 80 · Answer 3 · edited Nov 11 '16 at 14:09

80

Try this code.

startPoint.distanceTo(endPoint) function returns the distance between those places in meters.

Location startPoint=new Location("locationA");
startPoint.setLatitude(17.372102);
startPoint.setLongitude(78.484196);

Location endPoint=new Location("locationA");
endPoint.setLatitude(17.375775);
endPoint.setLongitude(78.469218);

double distance=startPoint.distanceTo(endPoint);

here "distance" is our required result in Meters. I hope it will work for android.

edited Nov 11 '16 at 14:09

Arpit Patel

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answered Nov 30 '13 at 05:35

sandeepmaaram

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Heyy @sandeepmaaram I'm using "SphericalUtil.computeDistanceBetween(from, to);" to calculate distance, but the thing is, as i print that distance in log it gives me 13047. Also the actual distance is 15.6 km. So I'm confused that what are that numbers?? If its the distance then how does it calculates. – MashukKhan Jul 20 '16 at 12:35
SphericalUtil is this API provided by java/android? did you try with my solution? – sandeepmaaram Jul 20 '16 at 15:57
1

Thankss a lot @sandeepmaaram I tried ur solution nd ur answer gives the exact location i want. Nd yes SphericalUtil api is provided by android. – MashukKhan Jul 21 '16 at 09:21

francisco_ssb · Answer 4 · 2015-10-20T09:40:27.513

11

in build.gradle:

compile 'com.google.maps.android:android-maps-utils:0.4'

and then:

public static Double distanceBetween(LatLng point1, LatLng point2) {
    if (point1 == null || point2 == null) {
        return null;
    }

    return SphericalUtil.computeDistanceBetween(point1, point2);
}

edited Oct 20 '15 at 09:40

answered Aug 07 '15 at 09:45

francisco_ssb

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In this method distanceBetween() what is the LatLng? I tried to pass longitude latitude double value but it is not supporting. – Himadri Dec 12 '18 at 14:39
you need to put LatLng type not double which looks like LatLng[21.432432,76.543543] – Adnan Bashir Mar 12 '21 at 11:09

Juri Tichomirow · Answer 5 · 2017-03-29T11:36:32.817

8

If you have two Location Objects Location loc1 and Location loc2 you do

float distance = loc1.distanceTo(loc2);

If you have longitude and latitude values you use the static distanceBetween() function

    float[] results = new float[1];
    Location.distanceBetween(startLatitude, startLongitude,
    endLatitude, endLongitude, results);
    float distance = results[0];

edited Mar 29 '17 at 11:36

answered Feb 11 '16 at 14:49

Juri Tichomirow

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score 3 · Answer 6 · answered Sep 07 '18 at 05:26

Get KM from lat long

public static float getKmFromLatLong(float lat1, float lng1, float lat2, float lng2){
            Location loc1 = new Location("");
            loc1.setLatitude(lat1);
            loc1.setLongitude(lng1);
            Location loc2 = new Location("");
            loc2.setLatitude(lat2);
            loc2.setLongitude(lng2);
            float distanceInMeters = loc1.distanceTo(loc2);
            return distanceInMeters/1000;
        }

score 2 · Answer 7 · answered Jan 28 '15 at 09:47

private String getDistanceOnRoad(double latitude, double longitude,
        double prelatitute, double prelongitude) {
    String result_in_kms = "";
    String url = "http://maps.google.com/maps/api/directions/xml?origin="
            + latitude + "," + longitude + "&destination=" + prelatitute
            + "," + prelongitude + "&sensor=false&units=metric";
    String tag[] = { "text" };
    HttpResponse response = null;
    try {
        HttpClient httpClient = new DefaultHttpClient();
        HttpContext localContext = new BasicHttpContext();
        HttpPost httpPost = new HttpPost(url);
        response = httpClient.execute(httpPost, localContext);
        InputStream is = response.getEntity().getContent();
        DocumentBuilder builder = DocumentBuilderFactory.newInstance()
                .newDocumentBuilder();
        Document doc = builder.parse(is);
        if (doc != null) {
            NodeList nl;
            ArrayList args = new ArrayList();
            for (String s : tag) {
                nl = doc.getElementsByTagName(s);
                if (nl.getLength() > 0) {
                    Node node = nl.item(nl.getLength() - 1);
                    args.add(node.getTextContent());
                } else {
                    args.add(" - ");
                }
            }
            result_in_kms = String.format("%s", args.get(0));
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return result_in_kms;
}

Daxesh Vekariya · Answer 8 · 2019-06-18T08:59:04.600

2

Use the below method for calculating the distance of two different locations.

public double getKilometers(double lat1, double long1, double lat2, double long2) {
 double PI_RAD = Math.PI / 180.0;
 double phi1 = lat1 * PI_RAD;
 double phi2 = lat2 * PI_RAD;
 double lam1 = long1 * PI_RAD;
 double lam2 = long2 * PI_RAD;

return 6371.01 * acos(sin(phi1) * sin(phi2) + cos(phi1) * cos(phi2) * cos(lam2 - lam1));}

edited Jun 18 '19 at 08:59

answered Jun 17 '19 at 06:38

Daxesh Vekariya

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gpuser · Answer 9 · 2019-10-03T07:30:40.867

Try This below method code to get the distance in meter between two location, hope it will help for you

 public static double distance(LatLng start, LatLng end){
    try {
        Location location1 = new Location("locationA");
        location1.setLatitude(start.latitude);
        location1.setLongitude(start.longitude);
        Location location2 = new Location("locationB");
        location2.setLatitude(end.latitude);
        location2.setLongitude(end.longitude);
        double distance = location1.distanceTo(location2);
        return distance;
    } catch (Exception e) {

        e.printStackTrace();

    }
    return 0;
}

score 1 · Answer 10 · answered Oct 07 '16 at 06:20

You should use Haversine Distance Formulas

Haversine Formulas used to calculate the great distance between two points on the earth.

    public void haversine(double lat1, double lon1, double lat2, double lon2) {
 double Rad = 6372.8; //Earth's Radius In kilometers
            // TODO Auto-generated method stub
            double dLat = Math.toRadians(lat2 - lat1);
            double dLon = Math.toRadians(lon2 - lon1);
            lat1 = Math.toRadians(lat1);
            lat2 = Math.toRadians(lat2);
            double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) + Math.sin(dLon / 2) * Math.sin(dLon / 2) * Math.cos(lat1) * Math.cos(lat2);
            double c = 2 * Math.asin(Math.sqrt(a));
            haverdistanceKM = Rad * c;

        }

Keshav Gera · Answer 11 · 2017-06-15T09:03:34.470

private float distanceFrom_in_Km(float lat1, float lng1, float lat2, float lng2) {

     if (lat1== null || lng1== null || lat2== null || lng2== null) 
     {
                return null;
     }

 double earthRadius = 6371000; //meters
    double dLat = Math.toRadians(lat2-lat1);
    double dLng = Math.toRadians(lng2-lng1);
    double a = Math.sin(dLat/2) * Math.sin(dLat/2) +
               Math.cos(Math.toRadians(lat1)) * Math.cos(Math.toRadians(lat2)) *
               Math.sin(dLng/2) * Math.sin(dLng/2);
    double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
    float dist = (float) (earthRadius * c);

    return dist;
    }

score 1 · Answer 12 · answered Nov 01 '21 at 09:15

1

In Kotlin

private fun distanceInMeter(startLat: Double, startLon: Double, endLat: Double, endLon: Double): Float {
    var results = FloatArray(1)
    Location.distanceBetween(startLat,startLon,endLat,endLon,results)  
    return results[0]
}

answered Nov 01 '21 at 09:15

Shimon Rothschild

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score 1 · Answer 13 · answered Aug 08 '11 at 12:19

1

Why are you writing the code for calculating the distance by yourself?

Check the api's in Location class

answered Aug 08 '11 at 12:19

Reno

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And why do you assume that he is developing an Android App? – Martin Nowosad Apr 10 '20 at 19:14

score 0 · Answer 14 · edited Oct 12 '21 at 13:53

Returns the approximate distance in meters between this location and the given location. Distance is defined using the WGS84 ellipsoid.

public float getMesureLatLang(double lat,double lang) {

    Location loc1 = new Location("");
    loc1.setLatitude(getLatitute());// current latitude
    loc1.setLongitude(getLangitute());//current  Longitude

    Location loc2 = new Location("");
    loc2.setLatitude(lat);
    loc2.setLongitude(lang);

    return loc1.distanceTo(loc2);
 //  return distance(getLatitute(),getLangitute(),lat,lang);
}

Yaqoob Bhatti · Answer 15 · 2021-10-08T06:51:28.827

Updated on October 8, 2021

Returns the approximate distance in meters between this location and the given location. Distance is defined using the WGS84 ellipsoid.

Java

  public float getDistance(double startLat,double startLang,double endLat,double endLang) {

        Location locStart = new Location("");
        locStart.setLatitude(startLat);
        locStart.setLongitude(startLang);

        Location locEnd = new Location("");
        locEnd.setLatitude(endLat);
        locEnd.setLongitude(endLang);

        return locStart.distanceTo(locEnd);
    }

Kotlin

 private fun getDistance(
        startLat: Double,
        startLang: Double,
        endLat: Double,
        endLang: Double
    ): Float {
        val locStart = Location("")
        locStart.latitude = startLat
        locStart.longitude = startLang
        val locEnd = Location("")
        locEnd.latitude = endLat
        locEnd.longitude = endLang
        return locStart.distanceTo(locEnd)
    }

How to calculate distance between two locations using their longitude and latitude value

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