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Convert square feet to acres, acres to square feet - Area Conversion

Convert ft2 to acres

ft2
acres

Convert acres to ft2

acres
ft2

How to convert ft2 to acres: Use the conversion calculator titled "Convert ft2 to acres". Enter a value in the ft2 field and click on the "Calculate acres" button. Your answer will appear in the acres field.

How to convert acres to ft2: Use the conversion calculator titled "Convert acres to ft2". Enter a value in the acres field and click on the "Calculate square feet" button. Your answer will appear in the ft2 field.

Conversion Definitions

The following is a list of definitions relating to conversions between square feet and square acres.

What is a square foot (ft2)?

A square foot is a unit of area in both US Customary Units as well as the Imperial System. The symbol for square foot is ft2 or sq ft. There are 144 square inches in a square foot. A square foot is calculated as the area of a square that has 1 foot on each side.

What is an acre (ac)?

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.

How many square feet in an acre?

There are 43,560 square feet in an acre.

How many acres in a square foot?

There are 0.00002 acres in a square foot.

Understanding the Area Units

This table provides a summary of the Area units within their respective measurement systems.

Unit Symbol Measurement System Description
square inches in2 or sq in US Customary Units (and Imperial)  
square feet ft2 or sq ft US Customary Units (and Imperial) 1 ft2 = 144 in2
square yards yd2 or sq yd US Customary Units (and Imperial) 1 yd2 = 9 ft2
acres ac US Customary Units (and Imperial) 1 ac = 4,840 yd2
square miles mi2 or sq mi US Customary Units (and Imperial) 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