Area Calculator
Draw a boundary. Calculate area in the units you need.
0 vertices. Keyboard alternative: enter coordinates above. At least 3 vertices are needed. Map tiles © OpenStreetMap contributors; no bulk downloads or offline caching.
Boundary area
How to use this tool
Click around a boundary in order or add vertices by latitude and longitude. Remove any misplaced vertex and review the calculated units. Avoid self-intersecting boundaries.
Common questions
Can I use the results for professional deliverables?
Verify the inputs, reference systems and assumptions independently. These utilities provide general estimates and checks, and do not replace professional surveying workflows.
Is my data uploaded?
No. Tool inputs and file contents are processed locally in your browser. The area tool fetches public map tiles from OpenStreetMap.
Build your connected toolkit
Explore our application previews, all clearly labeled with sample data.
Explore planned products →