Area Calculator | Draw Polygon on Map
Click multiple points on the map to draw a polygon and calculate its area. Close the polygon by clicking the first marker again.
Set Points
How to Use the Polygon Area Calculator
Draw Area by Map Click
- Click on multiple points on the map to create vertices
- The first marker indicates the starting vertex
- Close the polygon by clicking the first marker again
- Area is calculated automatically in various units
Reset & Re-draw
- Use the Reset button to clear all vertices
- Begin a new measurement by clicking on the map again
- Compare different parcel sizes quickly and easily
Key Features and Benefits
Multiple Units
View area results in km², acre, hectare, and more—no manual conversions needed.
Interactive Drawing
Add, move, or reset vertices effortlessly for precise measurements.
Mobile Friendly
Responsive design ensures smooth interaction on phones and tablets.
Frequently Asked Questions (FAQ)
What can I use this tool for?
Ideal for land survey, real-estate appraisal, agriculture planning, and construction site estimation.
How accurate is the area calculation?
We project coordinates to Web Mercator and apply the shoelace formula, which provides high accuracy for small to medium areas. For legal land surveys, consult licensed professionals.
Can I export the polygon?
Screenshot or copy vertex coordinates for now. GeoJSON export will be supported soon.