WP Google Map plugin helps you to embed Google Maps in your responsive website so the maps resize automatically based on the screen size of the visitor’s browser.

Responsive Google Maps

If you resize the browser or view the page on a small device, the embedded map would adjust its size automatically based on your screen size.

Step 1 Go to Add or Edit Map and leave the Map width column blank to make the map responsive.
Map Width
Step 2click Save map and open it in browser.

Your map now will be responsive. Try resizing your browser to see it in action.

Map Responsive

Non Responsive Google Maps