Square Feet to Acres Converter
Need to convert square feet to acres? Use our calculator below for instant, accurate conversions, along with the formula and common conversion values.
Need to convert acres to square feet instead? Try our acres to square feet converter.
How to Convert Square Feet to Acres
To convert square feet to acres, divide the square feet value by 43,560. This is because one acre equals exactly 43,560 square feet.
Formula: Acres = Square Feet ÷ 43,560
Example: 87,120 square feet ÷ 43,560 = 2 acres
Square Feet to Acres Conversion Table
| Square Feet (sq ft) | Acres (ac) |
|---|---|
| 10,890 sq ft | 0.25 acres |
| 21,780 sq ft | 0.5 acres |
| 43,560 sq ft | 1 acre |
| 87,120 sq ft | 2 acres |
| 217,800 sq ft | 5 acres |
| 435,600 sq ft | 10 acres |
What is a Square Foot?
A square foot (sq ft) is a unit of area equal to a square that is one foot on each side. It's the standard unit for measuring building area in the United States and is commonly used for expressing the size of homes, rooms, and small land parcels.
What is an Acre?
An acre is a unit of land area used primarily in English-speaking countries. One acre equals 43,560 square feet or approximately 4,047 square meters. It was historically defined as the area that could be plowed in one day by a yoke of oxen.
Need to convert the other way? Use our acres to square feet converter.
Common Area Unit Converters
FAQ
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How many square feet make up an acre?
There are exactly 43,560 square feet in one acre.
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What size is a 0.25 acre lot in square feet?
A quarter-acre lot is 10,890 square feet, which is a common size for suburban residential lots.
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How do I quickly estimate acres from square feet?
For a rough estimate, divide the square feet by 44,000 (instead of 43,560). For example, 88,000 square feet is approximately 2 acres.
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What's considered a large residential lot in square feet?
A residential lot over 21,780 square feet (0.5 acres) is typically considered large in suburban areas.
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How many square feet is a typical home's footprint?
A typical single-story home footprint ranges from 1,500 to 2,000 square feet, which is about 0.03 to 0.046 acres.