Interactive browser map

Map Area Calculator

Draw a polygon and estimate its area and perimeter in common metric, imperial, and Bangladesh land units.

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What Map Area Calculator does

Draw a polygon to estimate area, perimeter, acres, hectares, decimals, and katha.

How to use Map Area Calculator

  1. Click to add at least three polygon points.
  2. Review live area, perimeter, and unit assumptions.
  3. Export the closed Polygon as GeoJSON.

Method and calculation

Area uses a spherical polygon formula and perimeter sums great-circle edges. Katha uses the visible square-feet standard or your custom value.

Privacy and external map tiles

Calculations and uploaded files remain in your browser. Visual map tiles are downloaded from the displayed map provider and are not hosted by Toolare. The page is therefore not fully offline.

Limitations

Map measurements are estimates and should not replace official land surveys or legal records. Regional land conventions vary.

Related map tools

Coordinate ConverterConvert Decimal Degrees, DMS and Degrees Decimal Minutes.Coordinate ValidatorValidate pasted decimal and directional coordinate pairs.Distance Between CoordinatesCalculate straight-line geographic distance, bearing and midpoint.Bearing CalculatorFind initial and final geographic bearings and compass direction.

Frequently asked questions

Which katha standard is used?

The default shown is 720 square feet per katha and can be changed.

Is this survey-grade?

No. It is an estimate from map coordinates.