Convert Square Feet to Acres (ft² → acre)
Use our free online square foot to acre converter. Perfect for converting land area, property dimensions, and real estate measurements.
Conversion Formula
acre = ft² ÷ 43,560
To convert square feet to acres, divide the square foot value by 43,560
Example: To convert 87,120 ft² to acres: 87,120 ÷ 43,560 = 2 acres
Square feet to Acres Conversion Table
| Square feet (ft²) | Acres (ac) |
|---|---|
| 1000 ft² | 0.022957 ac |
| 5000 ft² | 0.114784 ac |
| 10000 ft² | 0.229568 ac |
| 21780 ft² | 0.5 ac |
| 43560 ft² | 1 ac |
| 50000 ft² | 1.147842 ac |
| 75000 ft² | 1.721763 ac |
| 100000 ft² | 2.295684 ac |
| 150000 ft² | 3.443526 ac |
| 200000 ft² | 4.591368 ac |
| 250000 ft² | 5.73921 ac |
| 500000 ft² | 11.478421 ac |
Quick reference: 1 ft² = 0.000023 ac
Understanding the Units
What is a square foot?
The square foot (ft²) is a unit of area used primarily in the United States and United Kingdom. It is defined as the area of a square with sides of one foot. It is commonly used for measuring rooms, apartments, and small land parcels.
What is an acre?
An acre is a unit of area commonly used in the United States and UK for measuring land. One acre is equal to 43,560 square feet or about 4,047 square meters. Historically, it was defined as the amount of land a yoke of oxen could plow in one day.
Frequently Asked Questions
How many acres are in a square foot?
1 square foot equals 0.0000229568 acres (approximately 1/43,560 of an acre).
How do you convert square feet to acres?
Divide the number of square feet by 43,560. For example, 87,120 ft² ÷ 43,560 = 2 acres.
What is 10,000 square feet in acres?
10,000 square feet equals 0.2296 acres (approximately 0.23 acres or almost a quarter acre).
How many square feet in a quarter acre?
A quarter acre (0.25 acres) equals 10,890 square feet.