Area conversion

Convert Square foot to Acre

1 square foot (ft²) equals 0.000022956841 acre (ac). Enter any value below to convert from ft² to ac.

Enter a value and choose units. Results update instantly.

1 ft² = 0.0000229568 ac

All Area units

From 1 ft²
UnitValue
Square meter m² 0.09290304
Square kilometer km² 0.0000000929
Square centimeter cm² 929.0304
Square millimeter mm² 92,903.04
Square inch in² 144
Square foot ft² 1
Square yard yd² 0.1111111111
Square mile mi² 0.0000000359
Acre ac 0.0000229568
Hectare ha 0.0000092903
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Formula

ft² to ac conversion formula

Use this relationship for a direct conversion:

ac = ft² x 0.000022956841

Worked example

2 ft² = 0.0000459137 ac.

Values derived from exact metric and international length definitions.

Quick reference

Square foot to Acre table

Square foot (ft²)Acre (ac)
0.010.0000002296
0.10.0000022957
10.0000229568
20.0000459137
50.0001147842
100.0002295684
250.000573921
500.0011478421
1000.0022956841
1,0000.0229568411

From unit

About the square foot

The area of a square one foot on each side.

Symbol: ft²

To unit

About the acre

Exactly 43,560 square feet.

Symbol: ac

Keep converting

Related conversions

Acre to Square footReverse this conversion Square foot to Square meterft² to m²Square foot to Square kilometerft² to km²Square foot to Square inchft² to in²Square foot to Square yardft² to yd²Square foot to Square mileft² to mi²Square foot to Hectareft² to ha

Source

Conversion standard

Definitions are checked against NIST SP 811: Area units. Calculations use full internal precision before display rounding.

View the complete area converter

Questions

ft² to ac FAQ

How do you convert square foot to acre?

Use the formula ac = ft² x 0.000022956841. 1 square foot (ft²) equals 0.000022956841 acre (ac).

Is the ft² to ac conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.