DailyCalc

Square feet to Acres (ft² to ac)

1 ft² ≈ 0.0000229568 ac. Type any value to convert it.

1 square foot =

0.00002295684114 ac

acres

Conversion factor
1 ft² ≈ 0.00002295684114 ac

Fix the highlighted field to update the result.

Show in all common units
1 ft² in other units
UnitValue
square centimeter (cm²)929.0304 cm²
square meter (m²)0.09290304 m²
hectare (ha)0.000009290304 ha
square kilometer (km²)9.290304 × 10⁻⁸ km²
square inch (in²)144 in²
square foot (ft²)1 ft²
square yard (yd²)0.1111111111 yd²
acre (ac)0.00002295684114 ac
square mile (mi²)3.5870064 × 10⁻⁸ mi²

How to convert square feet to acres

1 ft² ≈ 0.0000229568 ac

Divide square feet by 43,560, because 1 acre = 43,560 ft² exactly (NIST Handbook 44). 1 ft² is about 0.0000229568 acre.

Examples

  • 10,000 ft² = 0.22956841 ac: A building lot measured in square feet
  • 5,000 ft² = 0.11478421 ac: A city lot on a site plan
  • 1,000,000 ft² = 22.956841 ac: A large warehouse site

Sq ft to acres chart

Square feet to acres
Square feet (ft²)Acres (ac)
1 ft²0.000022956841 ac
2 ft²0.000045913682 ac
3 ft²0.000068870523 ac
4 ft²0.000091827365 ac
5 ft²0.00011478421 ac
10 ft²0.00022956841 ac
15 ft²0.00034435262 ac
20 ft²0.00045913682 ac
25 ft²0.00057392103 ac
50 ft²0.0011478421 ac
75 ft²0.0017217631 ac
100 ft²0.0022956841 ac
5,000 ft²0.11478421 ac
10,000 ft²0.22956841 ac
1,000,000 ft²22.956841 ac

Common mistakes

  • Don't divide by 4,840. That is the number of square yards in an acre (Weights and Measures Act 1985), not square feet.

Frequently asked questions

How many acres is 10,000 square feet?

About 0.23 acre (0.2296). Divide 10,000 by 43,560.

How do I turn a lot’s length and width into acres?

Multiply length by width in feet, then divide by 43,560. A 100 ft by 200 ft lot is 20,000 sq ft, about 0.46 acre.

What is 1 million square feet in acres?

1,000,000 sq ft is about 22.96 acres.

How many square feet make one acre?

Exactly 43,560 square feet make one acre.