Satellite Area Calculator: Measure Any Land Area on a Map
The most accurate free satellite imagery calculator for measuring land areas, distances and perimeters online. Draw polygons, circles and multi-point shapes directly on live satellite maps. Instant results in hectares, acres, square metres and more.
Use this free satellite area calculator to measure land area, field boundaries, construction sites and any geographic area directly on a live map. Draw a polygon or circle, read your satellite measurements instantly in any unit, then download your data as KML, CSV or a map image.
How to Use the Satellite Area Calculator
Measure any land area in seconds. The satellite area calculator works directly in your browser on any device. No download, no account, no API key required.
Search Your Location
Type any city, address or place name in the search bar. The satellite map navigates to your area of interest automatically.
Choose Your Draw Tool
Click Draw Area to draw a polygon by clicking each corner point on the satellite map. Double-click to close the polygon. Click Draw Circle to set a radius by clicking and dragging.
Read Your Satellite Measurements
Area and perimeter appear instantly in the side panel. Switch between square metres, hectares, acres, square feet, square kilometres and square miles at any time.
Download or Copy Your Data
Export your shape as a KML file for Google Earth or GIS software, download a CSV of all coordinates, save a PNG map screenshot, or copy coordinates to clipboard.
What Is a Satellite Area Calculator?
A satellite area calculator is a web-based mapping tool that lets you draw shapes directly on satellite or aerial imagery and calculates the real-world area and perimeter of those shapes. Unlike desktop GIS software, it runs in your browser with no installation. This tool uses geodesic calculations on the WGS84 ellipsoid, meaning it correctly accounts for Earth's curvature — producing the same level of accuracy as professional GIS software for areas up to several hundred square kilometres.
The calculator is powered by Leaflet, the leading open-source JavaScript mapping library, combined with the OpenStreetMap and ESRI satellite tile networks. You can switch between satellite imagery, street maps and topographic views at any time. All calculations happen client-side in your browser — no data is sent to a server.
Satellite Area Measurement Unit Conversion Reference
Use this reference table to understand the relationships between common area units used in satellite measurements and land area calculations.
| Unit | Square Metres (m²) | Hectares (ha) | Acres | Best Used For |
|---|---|---|---|---|
| 1 Hectare (ha) | 10,000 m² | 1 ha | 2.471 ac | Agriculture, forestry, urban planning |
| 1 Acre | 4,047 m² | 0.405 ha | 1 ac | Real estate, land sales, US farming |
| 1 km² | 1,000,000 m² | 100 ha | 247.1 ac | Large infrastructure, satellite imagery orders |
| 1 Square Mile | 2,589,988 m² | 258.99 ha | 640 ac | National mapping, US land surveys |
| 1 Square Foot | 0.0929 m² | 0.0000093 ha | 0.000023 ac | Building footprints, construction, US property |
How Accurate Is This Land Area Calculator?
The calculator uses geodesic (great-circle) calculations rather than flat-plane geometry. This is the same method used by professional GIS software such as ArcGIS and QGIS. Typical accuracy:
- Under 1 km²: accuracy better than 0.01%
- 1 to 100 km²: accuracy within 0.1%
- 100 to 1,000 km²: accuracy within 0.5%
- Over 1,000 km²: accuracy within 1–2%
For legally binding surveys, always verify with a licensed surveyor. This tool is designed for estimation, planning and pre-survey feasibility.
What Can I Download from This Tool?
Four export options are available from the Download panel:
- KML — opens in Google Earth, ArcGIS, QGIS, AutoCAD Map
- CSV — all coordinates, areas and perimeters in spreadsheet format
- PNG — map screenshot including your drawn shapes
- Copy — all coordinates to clipboard for pasting into any application
All files include XRTechGroup in the filename for easy identification in your project folder.
Common Satellite Measurement Challenges and How to Solve Them
Understanding the limitations of satellite area calculations helps you get more reliable results for your specific use case.
Irregular Field Boundaries
Challenge: Agricultural fields and land parcels rarely follow straight lines. Simple rectangular estimates are inaccurate.
Solution: Use the polygon draw tool and trace the actual boundary by clicking along the field edge on the satellite map. The more points you add, the more accurate the result. You can zoom into 1:1000 scale on satellite imagery for precise tracing.
Outdated Satellite Imagery
Challenge: The base map tiles used in this calculator may be months or years old. New construction, land clearing or boundary changes may not be visible.
Solution: For current ground conditions, order fresh satellite imagery from XRTech Group. Archive 30cm imagery from $20/km² is delivered in 48 hours. New tasking captures your area at the date you need.
Large Multi-Parcel Projects
Challenge: Projects spanning multiple disconnected parcels or covering thousands of km² are difficult to manage in a browser-based tool.
Solution: Draw each parcel as a separate shape. Use the Rename function to label each parcel. Download the KML file and open it in QGIS or ArcGIS for advanced multi-parcel management and combined reporting.
Ordering Satellite Imagery for Your AOI
Need: After calculating your area in this tool, you need to order actual satellite data for professional analysis.
Solution: Download the KML file from this calculator and upload it directly to XRTech Group's quote form. Your exact polygon becomes your area of interest (AOI) for the satellite imagery order. No redrawing required.
Benefits of Using a Free Online Satellite Area Calculator
Compared to traditional land measurement methods, an online satellite measurements tool saves time, reduces cost and removes the need for physical site access.
Instant Results
Area and perimeter calculations update in real time as you draw. No waiting, no processing, no manual calculations. A project that took hours now takes minutes.
Completely Free
No subscription, no trial period, no payment details. The full satellite area calculator is free for unlimited use. All downloads including KML, CSV and PNG are included at no cost.
Global Coverage
Measure land area anywhere on Earth. The satellite imagery covers all continents including remote regions, deserts, forests and coastal areas where physical access is difficult.
GIS-Ready Exports
KML files from this tool open directly in ArcGIS, QGIS, Google Earth Pro and AutoCAD Map. No conversion required. Use your drawn shapes immediately in your existing GIS workflow.
Works on Any Device
Fully responsive on desktop, tablet and mobile. Use it in the office for planning or in the field on a smartphone for quick area estimates during site visits. No app installation needed.
Private and Secure
All calculations happen locally in your browser. No measurement data, coordinates or project information is sent to any server. Your geographic data stays on your device.
Who Should Use the Satellite Imagery Calculator
From land surveyors to real estate developers and agricultural analysts, this free land area calculator map serves professionals across every industry that works with geographic measurements.
Land Surveyors
Quickly estimate parcel boundaries and areas before fieldwork. The satellite area calculator provides a fast cross-check against survey measurements and helps identify discrepancies in boundary documentation.
Farmers and Agronomists
Calculate field areas accurately for fertiliser and irrigation planning. Use the acreage estimator to verify subsidy applications and measure crop rotation blocks across complex field layouts.
Property Developers
Measure development site footprints, calculate plot ratios and estimate land acquisition areas before commissioning formal surveys. The satellite imagery calculator saves time and cost in early feasibility stages.
GIS Analysts
Use the KML export to import shapes directly into ArcGIS, QGIS or Google Earth Pro. The land size calculator is ideal for quick measurements during data collection and field boundary verification workflows.
Construction Teams
Estimate site clearance areas, calculate material volumes from surface areas and measure setback distances. The tool works on any device, so site managers can use it directly from a mobile phone in the field.
Environmental Consultants
Delineate habitat zones, measure wetland extents and calculate deforestation areas using satellite imagery. Export measurements as KML for inclusion in environmental impact assessment documentation.
Satellite Area Calculator Applications by Industry
This land area calculator map is used across every sector that works with geographic data. Below are the most common professional applications for satellite measurements.
Precision Agriculture
Field area for fertiliser, irrigation and yield calculations
Urban Planning
Zone areas, plot ratios and development footprint estimates
Real Estate
Property boundary and lot area verification from satellite
Construction
Site area, cut-and-fill volumes and material estimates
Forestry
Deforestation area, habitat extent and timber block sizing
Oil and Gas
Pipeline corridor areas and exclusion zone calculations
Renewable Energy
Solar farm and wind turbine site area assessment
Defence and Security
Perimeter distances, zone areas and terrain measurements
Hydrology
Watershed catchment area and flood zone extent calculation
Buy High-Resolution Satellite Imagery for Your Measured Area
Once you have calculated your area of interest with this satellite imagery calculator, XRTech Group can deliver professional-grade satellite data for that exact area. From $1/km² with 48-hour delivery and no export licence delays.
30cm High-Resolution Imagery
The finest commercial satellite resolution for your measured area. Archive from $20/km² delivered in 48 hours. Resolve individual vehicles, building details and infrastructure at true native 30cm ground sample distance.
Buy 30cm ImageryArchive and Tasking from $1/km²
Once you know your area from this land area calculator, use it to order satellite imagery from XRTech Group. Historical archive imagery from 1999 starts at $1/km². New tasking from $8/km², delivered globally without export restrictions.
Browse All ImageryFrequently Asked Questions About the Satellite Area Calculator
Measured Your Area? Buy Satellite Imagery for It.
XRTech Group delivers high-resolution satellite imagery for any area you have measured with this tool. Archive imagery from $1/km², new satellite tasking from $8/km², delivered in 48 hours worldwide with no export licence delays. Free sample included with every quote.