Online calculators to convert acres to square meters (ac to m2) and square meters to acres (m2 to ac). Our conversions provide a quick and easy way to convert between these units.
Enter your value in one of the conversion calculators below to convert acres to m2 or convert m2 to acres.
How to convert acres to m2 : Use the conversion calculator titled "Convert acres to m2". Enter a value in the acres field and click on the "Calculate square m" button. Your answer will appear in the m2 field.
How to convert m2 to acres : Use the conversion calculator titled "Convert m2 to acres". Enter a value in the m2 field and click on the "Calculate acres" button. Your answer will appear in the acres field.
The following is a list of definitions relating to conversions between acres and square meters.
An acre is a unit of area in both US Customary Units as well as the Imperial System. The symbol for acre is ac. There are 4,840 square yards in an acre or 43,560 square feet in an acre.
A square meter is a unit of area in the Metric System. The symbol for square meter is m2. There are 10,000 square meters in a hectare, or 1,000,000 square meters in a square kilometer. A square meter is calculated as the area of a square that has 1 meter on each side. The International spelling is square metre.
This table provides a summary of the Area units within their respective measurement systems.
|square inches||in2 or sq in||US Customary Units/Imperial System|
|square feet||ft2 or sq ft||US Customary Units/Imperial System||1 ft2 = 144 in2|
|square yards||yd2 or sq yd||US Customary Units/Imperial System||1 yd2 = 9 ft2|
|acres||ac||US Customary Units/Imperial System||1 ac = 4,840 yd2|
|square miles||mi2 or sq mi||US Customary Units/Imperial System||1 mi2 = 640 ac|
|square millimeters||mm2||Metric System|
|square centimeters||cm2||Metric System||1 cm2 = 100 mm2|
|square decimeters||dm2||Metric System||1 dm2 = 100 cm2|
|square meters||m2||Metric System||1 m2 = 100 dm2|
|hectares||ha||Metric System||1 ha = 10,000 m2|
|square kilometer||km2||Metric System||1 km2 = 100 ha|