Map Area Calculator - Marea
Measure fields & plots of land
Measure Any Area on a Map
Marea turns any map into a precise area and distance calculator. Measure fields, plots, rooftops, lawns and lakes — anything you can see from above — in seconds. Drop pins, draw freehand, walk the perimeter, or auto-detect a plot already on the map.
Key Features
Four Ways to Measure
- Tap to drop pins around a region and get its area instantly
- Draw freehand with your finger and Marea traces the outline
- Walk the perimeter and GPS drops pins automatically as you go
- Auto-detect plots — tap to find buildings, fields and parks already on the map and turn one into a measurement in a single tap
Results in Every Unit
Area in square meters (m²), square feet (ft²), acres, hectares, square kilometers and square miles — plus the distance between every point in meters, feet, kilometers, miles and nautical miles.
Tractor Mode
Turn your phone into a field-coverage guide. Set your implement width and speed, then drive: Marea records each pass, draws your covered area live, and tracks total distance and worked acreage. Pause, resume and save passes.
Grid Overlay
Drop a measured grid over any plot to plan rows, sections or spacing — horizontal, vertical or both, with the spacing, direction and color up to you.
Project an Area
Pin a saved plot to the centre of the screen at its real size, then pan and rotate around it to plan, compare or align on the ground.
Satellite & Map Views
Switch between satellite imagery and map views to find property lines and boundaries with high-resolution detail. On iOS, switch between Apple Maps and Google Maps.
Organize & Estimate
- Save your areas and revisit them anytime
- Drop labeled markers on the points that matter
- Keep a to-do list for every area
- Add notes and attach photos
- Estimate prices by multiplying any rate by the measured area
Share Links on the Web
Send a web link to any saved area — anyone can open it in a browser to see the polygon, its size and details, no app required, at mapareacalculator.com. You can also export a KML file or share a map image or PDF.
Perfect For
| Use Case | Description |
|---|---|
| Farming & Agriculture | Calculate field acreage, plan crop areas, and use Tractor Mode to track coverage |
| Real Estate | Estimate property sizes, lot dimensions, and check property lines and parcels |
| Roofing & Paving | Estimate roofing, asphalt, paving, turf and seeding quantities |
| Construction | Measure building footprints and job sites |
| Landscaping & Fencing | Plan garden layouts, outdoor spaces, and fencing perimeters |
| Land Surveying | Professional-grade area and distance measurements for boundary assessments |
| Solar Planning | Calculate roof areas for solar panel installation |
| Forestry & Conservation | Measure timber stands and managed land parcels |
How It Works
- Open the map - View your location or search for any address, in satellite or map view
- Mark the area - Tap to drop pins, draw freehand, walk the perimeter, or auto-detect a plot
- Get results - Instantly see the calculated area and distance in your preferred units
- Save or share - Store measurements, send a web link, or export as KML, image or PDF
Premium Features
- ✓ Save unlimited areas - Keep all your measurements
- ✓ Tractor Mode - Live field-coverage tracking by implement width and speed
- ✓ Grid overlay - Plan rows, sections and spacing over any plot
- ✓ Project an area - Pin a saved plot at real size to align on the ground
- ✓ Add notes & to-do lists - Document details and tasks for each area
- ✓ Attach photos - Visual reference for measurements
- ✓ Price calculator - Calculate cost per area
- ✓ Google Maps - Switch to Google Maps view
- ✓ Share & export - Send web links or export KML, images and PDFs
Free to Download
Download Marea for free and start measuring areas instantly. Upgrade to premium for advanced features like saving, notes, and price calculations.