Acreage Calculator Map
Measure the acreage of any land directly on the map. Click or tap around a boundary on the satellite view below and the acreage is calculated instantly — in acres, hectares, square feet and more. No sign-up — it works right in your browser.
Open the full-screen map calculator →
How to Measure Acreage on the Map
- Find your land — Search or pan to the property, field or plot you want to measure. Switch to satellite view to see boundaries clearly.
- Drop points around the edge — Click (or tap) at each corner to trace the outline of the area.
- Read the acreage — The result updates live as you add points. Switch units to see acres, hectares, square meters or square feet.
You can drag points to fine-tune the boundary, and the acreage recalculates instantly.
Why Measure Acreage on a Map?
Measuring on a map means you don’t need to know any dimensions in advance — no tape measure, no survey, no formulas. It’s the only practical way to measure irregular land, where straight length × width math falls apart. Because it uses real GPS coordinates, angled corners and curved boundaries are handled automatically.
| Use case | What you can measure |
|---|---|
| Real estate | Lot sizes, property acreage for listings |
| Farming | Field acreage for planting, spraying, reporting |
| Land buying | Verify advertised acreage before you buy |
| Fencing & landscaping | Perimeter and area for quotes |
| Forestry | Timber stands and managed parcels |
Measure Acreage on the Go
Prefer to measure in the field? The Marea app puts this same acreage calculator map on your phone, with your GPS location, offline maps and the ability to save and export measurements as KML. It’s available on iOS and Android.
Prefer to Type in Numbers?
If you already know the dimensions, skip the map and use one of these instant calculators:
- Acres to square feet converter
- Square feet to acres converter
- Acreage calculator by feet
- Lot size calculator
Frequently Asked Questions
How do I calculate acreage on a map?
Open the map, switch to satellite view, and click around the boundary of the land you want to measure. The acreage is calculated automatically from the points you place and updates as you add more.
Do I need to sign up to measure acreage on the map?
No. The map calculator works in your browser with no sign-up. The Marea mobile app offers the same measuring plus GPS, saving and KML export.
How accurate is measuring acreage on a map?
It's very accurate for practical purposes like property estimates and farm planning. Zoom in as far as possible and place points carefully on the boundary for the best precision.
Can I measure irregular or many-sided land?
Yes. Because the map uses real GPS coordinates for each point, irregular shapes, angled corners and curved boundaries are all measured accurately — just add more points along the edge.

