Measure Circle / Radius on a map

Draw a circle on a map anywhere in the world using this Google radius map calculator. Start by either searching by address or using the map controls to navigate to your chosen location. Then click a position on the map and drag your cursor to draw the circle.

When the circle is created you can move the circle by dragging it to another position. This online mapping tool measures the area of a circle and calculates its measurements in square meters (M2), square kilometres (KM2), square feet (FT2), square miles (MI2).

It also calculates the circle radius distance in meters, kilometres, feet and miles. We hope you find this radius calculator helpful. If you have suggestions on how we can improve this mapping tool, please get in touch.

Key Features

  • Search by address or town
  • Multiple units: KM, miles, meters and feet
  • Real-time area and radius data
  • Shareable radius map links

Common Uses

  • Delivery or service zone planning
  • Property size estimation
  • Emergency coverage zones
  • Geographic research and land analysis

Radius Map FAQ

How do I draw a circle on the map?

Use the draw circle control in the sidebar, click on the map, and drag outward to set the radius. The statistics update when the circle is created or edited.

Can I use a fixed radius?

Yes. Choose a value from the fixed radius selector and the tool will place an editable circle around the current map center.

How do I change the radius size after drawing?

Use the resize or move circle control. You can also choose another fixed radius to redraw the circle using that distance.

Can I share my radius map?

Yes. After drawing a circle, use the share button to generate a URL containing the circle latitude, longitude and radius.

What units of measurement are available for the radius circle?

The tool displays distance measurements in both metric and imperial units, including meters, kilometers, miles, and feet. Additionally, the calculated total area of the circle is automatically provided in corresponding square units such as square meters, square kilometers, square feet, and square miles.

How can I find a specific location before drawing my radius?

You can use the built-in search box in the sidebar to type in any address, town, or city name. The map will instantly center on your searched location, allowing you to accurately place your radius overlay or marker right where you need it.

What are some common use cases for a radius map?

A radius map is ideal for a wide variety of practical applications. Common uses include planning local delivery or service coverage zones, establishing emergency response perimeters, assessing real estate and property proximity, or conducting geographic and demographic research around a central location.