Measure Land Area on a Map
Click your field's corners on a satellite-style map and read the area in m², hectares, acres and dunams — plus the perimeter.
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Click the parcel corners on the map in order. At least 3 points are needed.
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Walking the Boundary with Clicks
Search for your location (or pan there), then click each corner of the parcel in order — the polygon closes automatically and the area updates with every point: m², dunam/decare, hectare and acre, plus perimeter for fencing estimates. Undo the last point or clear and restart anytime.
The math converts your clicks to local planar coordinates and applies the shoelace formula — accurate to well under 1% for parcels up to a few square kilometers. Overall accuracy is limited by how precisely you click the corners: zoom in fully before clicking, and expect map imagery to be offset a few meters from deed coordinates. For legal boundaries the cadastral record (deed/parcel query) is authoritative.
Frequently Asked Questions
How accurate is this versus a survey?
Clicked corners at high zoom typically land within 2-5 m of reality, so a 10-dunam field reads within a few percent. Licensed surveys with GNSS gear reach centimeters — required for legal work; this tool is for planning and estimating.
Can I measure irregular curved boundaries?
Add more points along the curve — every click is a vertex. A dozen points along a winding stream edge approximates it closely.
Why does my measurement differ from the deed?
Deeds use surveyed cadastral coordinates; map imagery can be shifted several meters, and fences rarely sit exactly on legal lines. Treat differences under ~5% as expected.
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Measure Land Area on a Map