Area measurement app: square metre, decare and perimeter on a phone
People searching for an area measurement app usually want a quick answer: how many square metres, decares or metres of perimeter.
Field takeaways
- The boundary source must be clear: GPS walk, manual drawing, KML/DXF or RTK measurement.
- Phone GPS is useful for approximate area, not official parcel area.
- 1 decare is 1000 m2 and 1 hectare is 10,000 m2.
- The polygon must close for a reliable area.
- MapLab Survey keeps area, perimeter, notes, photos and export in one project.
Three practical ways
Draw the boundary manually, walk it with GPS, or import an existing KML/DXF. The right method depends on the job. Phone GPS can be enough for planning, while official or precise work needs professional control.
MapLab Survey workflow
Create a project, add an area layer, draw or import the boundary, close the polygon, read area and perimeter, then export to KML, DXF, GeoJSON or CSV.
Units
1 decare is 1000 m2. 1 hectare is 10,000 m2. Keep the unit and boundary source in the project note.
See it in action
The Ultimate Mobile GIS App for Surveyors & Engineers | MapLab Survey
Visit the YouTube channel ->Try these steps on your own phone.
MapLab Survey handles RTK/GNSS point capture, drawing, area and volume calculations and coordinate conversion, then exports to DXF, KML/KMZ, GeoJSON, Shapefile, GeoPackage, NCZ or CSV. Capture, calculation and export work offline. Live NTRIP corrections and online basemaps need a connection.
Frequently asked questions
What should an area app support?
Area, perimeter, layers, KML/DXF export, offline use and CRS support.
Is phone area measurement accurate?
Useful for approximate work, not official surveying.
Can MapLab Survey export KML?
Yes, KML/KMZ, DXF, GeoJSON and CSV are supported.
What is 1 decare?
1000 square metres.
Technical references
The field guidance in this article is aligned with the technical and official references below.
Related: Field area calculation · Phone area measurement · How to measure land · MapLab Survey