Draw a map radius
Circle, circumference and area around a point.
Loading map
- Diameter
- 2 km
- Circumference
- 6.28 km
- Area
- 3.14 km²
- Hectares
- 314.1 ha
Straight-line radius, not driving distance or travel time.
Method
Click or drag the centre, or enter WGS84 coordinates. Set the radius in metres or kilometres. The circle is generated from geodesic destinations around the centre; its polygon is used to calculate area and circumference. Download the outline as GeoJSON to use it elsewhere.
Example
A 1 km radius has a 2 km diameter and an area close to 3.14 km², approximately 314 hectares. The polygon approximation and Earth's curvature can cause small differences from a flat-circle formula.