How accurate is the map area calculator?

The calculator uses Google Maps' geodesic area computation, which accounts for the curvature of the Earth. For typical land parcels, accuracy is within 0.1-0.5% of the true area. Accuracy depends on how precisely you place the boundary points.

Can I measure irregularly shaped fields?

Yes. You can place as many boundary points as needed to trace complex, irregular shapes. The more points you use along curves and corners, the more accurate your measurement will be.

What units are supported?

Area can be displayed in square meters (m²), square feet (ft²), acres (ac), and hectares (ha). Perimeter is available in meters, feet, kilometers, and miles. You can switch units at any time.

Can I adjust the boundary after measuring?

Yes. After closing the polygon, you can drag any vertex to adjust the boundary. The area and perimeter recalculate in real time as you move points.

Are my measurements saved?

Yes. Your drawn polygon and unit preferences are saved in your browser's local storage. When you return to the page, your last measurement will be restored automatically.

Free Map Area Calculator - Measure Land Area on a Map | LandLens

Draw on a satellite map to measure land area instantly. Get results in acres, hectares, sq meters, and sq feet. Free online field area calculator.

Loading map...

FieldsAreaMeasure.aboutHeading

FieldsAreaMeasure.aboutParagraph1

FieldsAreaMeasure.aboutParagraph2

FieldsAreaMeasure.howItWorksHeading

FieldsAreaMeasure.useCasesHeading

FieldsAreaMeasure.accuracyHeading

FieldsAreaMeasure.accuracyParagraph1

FieldsAreaMeasure.accuracyParagraph2

FieldsAreaMeasure.faqHeading

FieldsAreaMeasure.ctaHeading

FieldsAreaMeasure.ctaDescription

Download LandLens Free

Related tools & guides

Area ConverterConvert between acres, hectares, square feet and more.Distance CalculatorMeasure the distance between points on a map.Square Footage CalculatorCalculate the square footage of a space.How Big Is an Acre?Visualize an acre with real-world comparisons.

Share Your Feedback

Help us build a better LandLens. Request features, report bugs, or tell us what you think.