Area Measurement
Area Measurement creates a closed region from multiple vertices and calculates its area and perimeter.
Steps
- Select Area on Home.
- Add vertices around the boundary using the crosshair or current location.
- After at least three points, the app displays area and closed perimeter.
- Tap the perimeter section to expand individual edge lengths.
- Tap a map point to edit or remove that vertex.
- Tap save in the upper-right corner and enter a name.
The region closes in point order, connecting the last point back to the first. Add vertices consistently around the boundary and avoid crossing edges, because self-intersecting polygons can produce results that are difficult to interpret.
Units and algorithm
Area can be shown in square meters/square kilometers or square feet/acres. Perimeter follows the distance unit. Distance and area share the Local Planar and Ellipsoidal algorithm preference.
Improve accuracy
- For field sampling, wait for stable accuracy and sample each boundary turn.
- For remote map selection, zoom in and align the crosshair with the boundary.
- For geographically large regions, prefer the ellipsoidal method.
- Results are estimates and are not land, property, or engineering survey conclusions.