Getting Lat/Lng from a Click Event
Page Summary
This example demonstrates capturing the latitude and longitude coordinates of a user's click on a Google Map.
It uses an
InfoWindowto display the coordinates on the map at the clicked location.The example code is provided in both TypeScript and JavaScript, along with HTML and CSS for creating the map display.
Users can try the sample directly in JSFiddle or Google Cloud Shell, and can also clone the sample code to run it locally.
This example listens for theclick event, gets the latitude and longitude coordinatesof the click fromgoogle.maps.MapMouseEvent.latLng, and displays those coordinates inan info window.
Read thedocumentation.
TypeScript
asyncfunctioninitMap(){// Request needed libraries.const{Map}=awaitgoogle.maps.importLibrary("maps")asgoogle.maps.MapsLibrary;constmyLatlng={lat:-25.363,lng:131.044};constmap=newgoogle.maps.Map(document.getElementById("map")!,{zoom:4,center:myLatlng,});// Create the initial InfoWindow.letinfoWindow=newgoogle.maps.InfoWindow({content:"Click the map to get Lat/Lng!",position:myLatlng,});infoWindow.open(map);// Configure the click listener.map.addListener("click",(mapsMouseEvent)=>{// Close the current InfoWindow.infoWindow.close();// Create a new InfoWindow.infoWindow=newgoogle.maps.InfoWindow({position:mapsMouseEvent.latLng,});infoWindow.setContent(JSON.stringify(mapsMouseEvent.latLng.toJSON(),null,2));infoWindow.open(map);});}initMap();
JavaScript
asyncfunctioninitMap(){// Request needed libraries.const{Map}=awaitgoogle.maps.importLibrary("maps");constmyLatlng={lat:-25.363,lng:131.044};constmap=newgoogle.maps.Map(document.getElementById("map"),{zoom:4,center:myLatlng,});// Create the initial InfoWindow.letinfoWindow=newgoogle.maps.InfoWindow({content:"Click the map to get Lat/Lng!",position:myLatlng,});infoWindow.open(map);// Configure the click listener.map.addListener("click",(mapsMouseEvent)=>{// Close the current InfoWindow.infoWindow.close();// Create a new InfoWindow.infoWindow=newgoogle.maps.InfoWindow({position:mapsMouseEvent.latLng,});infoWindow.setContent(JSON.stringify(mapsMouseEvent.latLng.toJSON(),null,2),);infoWindow.open(map);});}initMap();
CSS
/* * Always set the map height explicitly to define the size of the div element * that contains the map. */#map{height:100%;}/* * Optional: Makes the sample page fill the window. */html,body{height:100%;margin:0;padding:0;}
HTML
<html> <head> <title>Event Click LatLng</title> <link rel="stylesheet" type="text/css" href="./style.css" /> <script type="module" src="./index.js"></script> </head> <body> <div></div> <!-- prettier-ignore --> <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))}) ({key: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "weekly"});</script> </body></html>Try Sample
Clone Sample
Git and Node.js are required to run this sample locally. Follow theseinstructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.
gitclone-bsample-event-click-latlnghttps://github.com/googlemaps/js-samples.gitcdjs-samplesnpminpmstart
Other samples can be tried by switching to any branch beginning withsample-SAMPLE_NAME.
gitcheckoutsample-SAMPLE_NAMEnpminpmstart
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Last updated 2025-12-18 UTC.