AOI Area Calculator
Calculate the area of any polygon by entering coordinates. Supports GeoJSON import/export and multiple unit conversions.
Polygon Coordinates
Example Polygons
Import / Export
Understanding Area Calculations
This calculator uses geodesic area calculation methods that account for Earth's curvature, providing accurate results for any polygon size from small plots to large regions.
Common Area Units
- Square Meters (m²): SI unit, ideal for small areas
- Hectares (ha): 1 ha = 10,000 m². Common for agricultural land
- Acres: 1 acre ≈ 4,047 m². Common in US/UK real estate
- Square Kilometers (km²): For large regions and administrative areas
Input Formats
Coordinates should be in decimal degrees (WGS84). You can enter them as:
- Comma-separated:
28.6139, 77.2090 - Space-separated:
28.6139 77.2090 - Import from GeoJSON file
Use Cases
- Drone Mapping: Estimate flight time and image count
- Land Surveying: Calculate parcel areas
- Agriculture: Measure field sizes for crop planning
- Construction: Determine site boundaries
Area Unit Conversions
| Unit | Square Meters | Acres | Sq Km | Sq Miles |
|---|---|---|---|---|
| 1 Hectare (ha) | 10,000 | 2.471 | 0.01 | 0.00386 |
| 1 Acre | 4,047 | 1 | 0.00405 | 0.00156 |
| 1 Square Kilometer | 1,000,000 | 247.1 | 1 | 0.386 |
| 1 Square Mile | 2,590,000 | 640 | 2.59 | 1 |
Drone Coverage by Platform
| Drone Type | Coverage/Flight | Flight Time | Notes |
|---|---|---|---|
| DJI Mini Series | 15-25 ha | 25-30 min | Consumer, limited payload |
| DJI Mavic 3 / Air 2S | 30-50 ha | 35-45 min | Prosumer mapping |
| DJI Phantom 4 RTK | 40-60 ha | 25-30 min | Professional, RTK accuracy |
| DJI Matrice 300 RTK | 50-80 ha | 40-55 min | Enterprise, multi-payload |
| senseFly eBee X | 200-500 ha | 60-90 min | Fixed-wing, large area |
Frequently Asked Questions About Area Calculation
Upload your KML file to our AOI Area Calculator. The tool automatically parses polygon coordinates and calculates geodesic area in multiple units (hectares, acres, square kilometers). Works with KML files from Google Earth, QGIS, ArcGIS, and other GIS software.
A typical mapping drone (DJI Mavic 3, Phantom 4) covers 30-50 hectares per battery at 120m altitude with 75% overlap. Actual coverage depends on GSD requirements, overlap settings, wind conditions, and flight speed. Fixed-wing drones can cover 200+ hectares per flight.
Geodesic calculation accounts for Earth's curvature, giving accurate results for any polygon size. Planar calculation treats the surface as flat, which causes significant errors for large areas. Our calculator uses geodesic methods for professional accuracy.
1 hectare = 2.471 acres = 10,000 m² = 0.01 km². Our calculator automatically displays area in multiple units. For reference: a typical city block is about 1-2 hectares, a football field is about 0.5 hectares.
Yes, our calculator supports GeoJSON polygon import in addition to KML. Simply paste your GeoJSON or upload the file. The tool handles both single polygons and multi-polygon features, calculating total area for all features.