How to set a radius on Google Maps

How to set a radius on Google Maps?

Instructions

1. Type in a radius required in the text box above. 
2. [Zoom and Pan to find the required area on the map then click on the map to draw a circle] OR [Type a location into the text box and click Draw Radius] OR [Input the latitude and longitude of the location in decimal format].

How To Use A Google Maps Radius Tool

As someone who likes both, Google Maps and hiking, I wanted to find a way to draw a radius circle around a location in Google Maps to show a distance from that point in all directions. I was surprised that Google doesn’t offer such a nifty feature in the Maps Tool. If you are looking for a Google Maps radius tool as well, don’t worry, there is still a way to do this. It’s just not a supported feature, but there is a developer called Oliver Beattie who created a tool to draw circles of a given radius on top of the Google map, simply load this Map instead.

https://diaryofdennis.com/2016/10/17/how-to-show-a-radius-around-a-google-maps-location/