Square Feet to Acres Converter
Enter an area in square feet and instantly see it in acres, hectares, square metres, square yards, and square miles. The default shows 43,560 sq ft — exactly one acre — so you can verify the conversion at a glance.
ft²
Divide sq ft by 43,560 to get acres
- 1
Conversion factor
1 ÷ 43,560 = 0.00002296The acre is defined as exactly 43,560 square feet. - 2
Acres
43,560 ÷ 43,560 = 1
How does this calculator work?
Divide square feet by 43,560 to get acres (exact US definition). One acre = 43,560 sq ft ≈ 0.4047 hectares ≈ 4,047 m². Enter any square footage and the converter shows acres, hectares, square metres, square yards, and square miles simultaneously.
Formula
How this is calculated
The acre is a US customary and imperial unit of land area. By definition, 1 acre = 43,560 square feet (or equivalently 1 furlong × 1 chain = 660 ft × 66 ft). This is the exact relationship used here — there is no rounding involved in the sq ft → acres step.
For metric equivalents, one acre equals approximately 0.404686 hectares (1 hectare = 10,000 m² = 107,639.1 sq ft). The calculator converts to square metres first (using 1 ft² = 0.09290304 m², which is exact) and then derives hectares and km².
Land areas are frequently given in square feet by surveyors and architects in the US, while agricultural and real-estate listings often quote acres. Use this calculator to translate between the two systems quickly for property purchases, landscaping, or agricultural planning.
Frequently asked questions
Exactly 43,560 square feet. This is the legal US definition: 1 acre = 10 square chains = 10 × (66 ft)² / 10 = 43,560 sq ft.
Divide the area in square feet by 43,560. For example, 87,120 sq ft ÷ 43,560 = 2 acres.
Both measure land area but in different systems. 1 acre ≈ 0.4047 hectares, or 1 hectare ≈ 2.471 acres. The hectare is the metric unit (10,000 m²); the acre is the US/imperial unit (43,560 sq ft).
Also known as
TG we-Calculate Editorial Team. (2026). Square Feet to Acres Converter [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/square-feet-to-acres-converter
TG we-Calculate Editorial Team. "Square Feet to Acres Converter." TG we-Calculate. 2026. https://we-calculate.com/calculator/square-feet-to-acres-converter.
TG we-Calculate Editorial Team, "Square Feet to Acres Converter," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/square-feet-to-acres-converter
@misc{wecalculate_square_feet_to_acres_converter, title = {Square Feet to Acres Converter}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/square-feet-to-acres-converter}}, year = {2026}, note = {TG we-Calculate} }
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