Conversion

Square Feet to Acres Converter

1 square foot = 0.00002295684114 ac. Enter any value to convert square feet (ft²) to acres (ac), or use the table below for common values.

Results

1 ft² =0.00002295684114 acsquare feet → acres

1 ft²0.00002295684114 ac

1 ac43,560 ft²

Formula: ac = ft² × 0.00002295684114

1 ft² in other units

1 ft² in other units
Unit	Value
square meters (m²)	0.09290304
square kilometers (km²)	0.00000009290304
square inches (in²)	144
square yards (yd²)	0.1111111111
square miles (mi²)	0.00000003587006428
acres (ac)	0.00002295684114
hectares (ha)	0.000009290304

Formula

ac = ft² × 0.00002295684114

Example: 10 ft² = 0.0002295684114 ac. To convert the other way, use ft² = ac × 43,560.

Quick mental estimate: multiply by about 0.000023.

Square Feet to Acres conversion table

Square Feet (ft²)	Acres (ac)
1 ft²	0.00002295684114 ac
2 ft²	0.00004591368228 ac
3 ft²	0.00006887052342 ac
4 ft²	0.00009182736455 ac
5 ft²	0.0001147842057 ac
6 ft²	0.0001377410468 ac
7 ft²	0.000160697888 ac
8 ft²	0.0001836547291 ac
9 ft²	0.0002066115702 ac
10 ft²	0.0002295684114 ac
15 ft²	0.0003443526171 ac
20 ft²	0.0004591368228 ac
25 ft²	0.0005739210285 ac
30 ft²	0.0006887052342 ac
40 ft²	0.0009182736455 ac
50 ft²	0.001147842057 ac
75 ft²	0.001721763085 ac
100 ft²	0.002295684114 ac
250 ft²	0.005739210285 ac
500 ft²	0.01147842057 ac
1,000 ft²	0.02295684114 ac

About square feet and acres

The square foot is exactly 0.09290304 m². Homes and offices in the US, UK and Canada are commonly listed in square feet.

The acre is 43,560 square feet (about 4,047 m²), the traditional unit for farmland and building plots in the US and UK.

Other Area conversions

Acres → Square FeetReverse conversion Square Meters → Acresm² → ac Square Kilometers → Acreskm² → ac Square Inches → Acresin² → ac Square Feet → Square Metersft² → m² Square Feet → Square Kilometersft² → km² Square Feet → Square Inchesft² → in² Square Feet → Square Yardsft² → yd² Square Feet → Square Milesft² → mi² Square Feet → Hectaresft² → ha Square Yards → Acresyd² → ac Square Miles → Acresmi² → ac Hectares → Acresha → ac

Frequently asked questions

How do I convert square feet to acres?

Use the formula ac = ft² × 0.00002295684114. For example, 10 ft² = 0.0002295684114 ac.

What is 1 square foot in acres?

1 ft² = 0.00002295684114 ac.

How do I convert acres back to square feet?

Use ft² = ac × 43,560. 1 ac = 43,560 ft².