If you want to add google map on your website, so that you can show your exact address on contact page using map, use below code,
<!DOCTYPE html>
<html>
<head>
<style>
#map {
height: 700px;
width: 100%;
}
</style>
</head>
<body>
<h3>My Google Maps Demo</h3>
<div id="map"></div>
<script>
function initMap() {
var uluru = {lat: 12.955746, lng: 77.691885};
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 18,
center: uluru
});
var marker = new google.maps.Marker({
position: uluru,
map: map
});
}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=YOUR_KEY&callback=initMap">
</script>
</body>
</html>
In Above code, you will have to change “lat: 12.955746, lng: 77.691885” to your longitude and latitude and also modify “key=YOUR_KEY”
Refer https://developers.google.com/maps/documentation/javascript/adding-a-google-map for more information.