Square Feet to Acres converter
Convert square feet (ft²) to acres (ac) — results update instantly as you type.
Square Feet to Acres
To
1 ft² = 0.00002296 ac
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How to convert Square Feet to Acres
Area measurements describe surfaces — from apartment floor plans in square meters or square feet to farmland in acres and hectares, and entire countries in square kilometers or square miles.
Every area unit is a length unit squared, which is why conversion factors are large: one acre equals exactly 4,046.8564224 square meters and one hectare is exactly 10,000 square meters.
Formula
ft² × 0.0000229568 = ac
Multiply your square feet value by 0.0000229568 to get acres. For the reverse, divide by the same factor.
Square Feet to Acres conversion table
| Square Feet | Acres |
|---|---|
| 1 ft² | 0.000023 ac |
| 2 ft² | 0.000046 ac |
| 5 ft² | 0.000115 ac |
| 10 ft² | 0.00023 ac |
| 25 ft² | 0.000574 ac |
| 100 ft² | 0.002296 ac |
Common use cases
- Real estate listings between square feet and square meters
- Farmland and plots between acres and hectares
- Country and city size comparisons
- Construction material coverage estimates
Frequently asked questions
One acre equals 43,560 square feet, or about 4,047 square meters — roughly 90% of an American football field.