Acreage Calculator

Calculate the acreage of a plot of land or convert a known land area into acres, hectares, square meters, square feet, square yards and other common land-measurement units.

Calculate or convert land area

Choose “Enter a known area” to convert a measurement you already have, or calculate area from plot dimensions.

Calculation method

Known area Enter a positive area measurement.

Known area unit

Plot length

Plot width

Triangle base

Triangle perpendicular height

Circle radius

Dimension unit The same unit is used for every dimension in the selected shape.

Reset calculator

Land area conversion reference

These standard conversion factors are used by the calculator.

Unit	Equivalent area
1 acre	4,046.8564224 m²
1 acre	0.40468564224 hectares
1 acre	43,560 square feet
1 acre	4,840 square yards
1 hectare	10,000 m²
1 square mile	640 acres
1 rood	0.25 acres

How to use the acreage calculator

Choose whether to convert a known area or calculate an area from dimensions.
For a known area, enter the measurement and select its unit.
For a rectangle, triangle or circle, enter the required dimensions and choose the length unit.
Select Calculate acreage to display acres and equivalent units.

For a triangular plot, enter the perpendicular height to the base, not the length of a sloping side.

Related area calculators

Plot Area Calculator Calculate land area from plot dimensions. Area Calculator Calculate common geometric areas. Rectangle Area Calculator Calculate area using length and width. Triangle Area Calculator Calculate triangle area from base and height. Circle Area Calculator Calculate circular area from radius or diameter. House Area Calculator Add up room measurements and floor areas.

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