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.