Navigate the map by dragging or searching for an address to find your desired location.
In "Draw Circle" mode, click and drag on the map to draw a circle.
After drawing, you can drag the center of the circle to move it, or drag the edge to adjust its size (radius).
Check the center coordinates, radius, perimeter, and area in various units in the results panel.
Use the unit selection dropdowns to instantly change the units for radius, perimeter, and area.
Click the "Remove Circle" button to delete the current circle and start a new measurement.
Find all points of interest, such as stores, schools, or hospitals, within a certain distance from a specific location. Useful for urban planning, business site selection, and personal convenience.
Define and visualize the coverage area for services like delivery zones, emergency response, or wireless networks to ensure all target locations are within reach.
Plan safety perimeters for events, construction sites, or hazardous material incidents by drawing a radius to quickly assess affected areas and communicate boundaries.
Evaluate properties based on their distance to key amenities, workplaces, or transit stations by measuring and comparing radii from multiple locations.
Our radius measurements use precise map projections and account for the Earth's curvature, providing accuracy within a few meters for most practical purposes. The accuracy may vary slightly depending on the map zoom level and your location on the globe.
Yes. After drawing a circle, you can drag its edge to resize the radius at any time. The measurement results will update automatically as you adjust the circle.
You can view and convert radius, perimeter, and area in various units: meters (m), kilometers (km), miles (mi), feet (ft), acres, and hectares. Use the dropdowns in the results panel to switch units instantly.
Currently, only one circle can be drawn and measured at a time. To measure a new radius, simply remove the existing circle and draw a new one.
Currently, there is no built-in function to copy or export radius measurement results. Please take note of the values manually if you need to use them elsewhere.
User Comments & Feedback
Share Your Experience with the Radius Calculator
Simple and intuitive. Love the radius tool.
Nice UI!
The unit conversion is super handy.
Can I move the circle after drawing it?
Very useful for checking coverage areas!
Would be great if I could draw multiple circles at once.
Can I export the results as a file?
I wish there was a way to save my measurements for later.