Draw your first radius circle
- Choose the center. Search an address, city, postcode, landmark, or coordinates. You can also click the map or use your device location.
- Enter the radius. Type an exact distance and choose miles, kilometers, meters, or feet.
- Refine the circle. Drag the center marker to move it. Drag the edge handle to change its size.
- Add context. Give the circle a label and color, then add other circles to compare locations or distances.
- Share or export. Send a restoring link or download GeoJSON, KML, or CSV.
What a radius map measures
Every point on the boundary has the same ground distance from the center. This is a geodesic or straight-line radius, sometimes called an “as the crow flies” distance. It gives a consistent geographic buffer. It does not follow roads, walking paths, administrative boundaries, or terrain.
Choose the right distance
Start with the real constraint behind your question. A small site safety buffer might use meters or feet. Local delivery and urban property research often begin with a few miles or kilometers. Field service and regional sales territories may begin at 25 to 100 miles. Validate any operational boundary against travel times, capacity, regulations, and local geography.
Compare locations and overlapping circles
Multiple circles reveal gaps and overlap at a glance. Use a consistent radius to compare candidate store sites, or different colors to represent service tiers. When circles overlap, every place in the overlap lies within the stated radius of both centers.
Understand the measurements
The diameter is twice the radius. Circumference is 2πr, and area is πr². Because area uses the radius squared, increasing a radius from 5 to 10 miles covers four times as much land in mathematical terms.