How do I convert Square foot (ft²) to Acre?

1 ft2 equals 2.3E-05 acre using SI-based conversion and precise factors.

What is the formula to convert Square foot (ft²) to Acre?

This is a linear unit conversion using a constant factor between units.

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Use the shareable URL pattern: /convert/ft2-to-acre/1

Category: Area

Value From To Precision

2.3E-05 acre

1 ft2 = 2.3E-05 acre

High-precision rounding: 6 decimals

We convert by pivoting through the SI base unit for Area and applying exact factors where applicable.

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Area is length squared; used from land surveying to floor plans.

Square foot (ft²)

Area of a square 1 ft × 1 ft.

History: Common in real estate; tied to the 1959 foot.

Acre

4,046.8564224 m².

History: Medieval field measure; standardized later.