Circle Area & Radius Calculator
Translate a simple radius into practical coverage stats. EarthChasers renders the buffer on a Google Maps Photorealistic 3D globe so you can evaluate line of sight, population centers, or event staging in seconds.
Enter a radius in meters to see area in km² and m² alongside circumference.
Click anywhere on the Google Maps 3D globe to reposition your radius.
Share URLs capture both the radius and optional center coordinates.
Perfect for coverage planning, campus security, and chase-day staging.
Planning with the radius calculator
Start with meter-based inputs for precision, then copy the square kilometer output for quick reporting. You can also combine this tool with the distance calculator to estimate travel time from your radius edge.
Need coordinate conversions for the center? Open the coordinate converter in a new tab before sharing your radius link.