Acres to Square Feet Converter

Convert acres to square feet and 7 other area units. Includes landmark comparisons, lot equivalents, and a visual size reference chart.

Presets (Acres)

Square Feet
43,560.00
1 acre = 43,560 sq ft
Acres
1.00
1 sq ft = 0.00002296 acres
Square Meters
4,046.86
1 acre = 4,046.86 m²
Square Yards
4,840.00
1 acre = 4,840 sq yd
Hectares
0.40
1 acre = 0.4047 hectares
Square Miles
0.00
640 acres = 1 sq mi
Square Kilometers
0.00
1 acre = 0.00405 km²
Typical Lots (6,000 sqft)
7.26
Approximate suburban lot equivalents

Size Comparison

Tennis court
17.86×
Basketball court
9.17×
Football field
0.76×
Soccer field
0.57×
City block (avg)
0.4×
Disneyland
0.01×
Section (1 sq mi)
0×
Central Park (NYC)
0×
Planning notes, formulas, and examples

About the Acres to Square Feet Converter

One acre equals exactly 43,560 square feet — a number that appears constantly in real estate listings, zoning documents, and agricultural records. Despite its ubiquity, the acre-to-square-feet conversion is easy to forget because 43,560 is not a round number. The page extends that base conversion to seven additional area units including square meters, hectares, and square miles.

Whether you are evaluating a ¼-acre suburban lot, comparing farmland parcels, or sizing a commercial development, the result is shown alongside visual comparisons to familiar landmarks like football fields and city blocks. Preset buttons cover the most common parcel sizes from a quarter acre to a full section (640 acres = 1 square mile).

Real estate professionals, farmers, land surveyors, and homeowners all deal with acres regularly. This calculator makes it simple to translate listings into the square-foot figures that are more intuitive for residential buyers, or to convert square footage back to acres for agricultural and zoning contexts.

When This Page Helps

Remembering that 1 acre = 43,560 sq ft is tricky, and chaining additional conversions to hectares or square meters is easy to mishandle. Showing eight area units together makes it easier to move between listing language, zoning thresholds, and farm or development planning without losing track of scale. The landmark comparison bars help you visualize how large a parcel really is.

How to Use the Inputs

  1. Choose the conversion direction: Acres → Square Feet or Square Feet → Acres.
  2. Enter the value or tap a preset button for common lot sizes.
  3. Select your preferred decimal precision for the results.
  4. Read all eight output cards showing square feet, square meters, hectares, and more.
  5. Use the size comparison bars to visualize your area relative to landmarks.
  6. Expand the reference table for a detailed list of well-known areas.
Formula used
Square Feet = Acres × 43,560 Acres = Square Feet ÷ 43,560 1 acre = 4,046.86 m² = 4,840 yd² = 0.4047 ha = 1/640 sq mi

Example Calculation

Result: 108,900 sq ft

2.5 acres × 43,560 = 108,900 square feet. That is roughly the size of an average city block, or about 10,117 square meters.

Tips & Best Practices

  • A standard suburban lot is typically 0.1–0.25 acres (4,356–10,890 sq ft).
  • One football field (including end zones) is about 1.32 acres.
  • 640 acres make exactly 1 square mile — this is one "section" in the US Public Land Survey System.
  • To estimate acres from an irregular shape, divide it into rectangles and sum the areas.
  • In real estate, "usable acres" may differ from total acres due to easements and setbacks.
  • Multiply acres by 0.4047 for a quick hectare estimate.

History of the Acre

The acre originated in medieval England as the area that a yoke of oxen could plow in one day. It was standardized in the 13th century as 1 chain (66 feet) by 1 furlong (660 feet) = 43,560 square feet. Today the international acre is defined in terms of the international yard, making it exactly 4,046.8564224 square meters.

Acres in Real Estate

US real estate listings use both acres and square feet depending on the property type. Residential lots under 1 acre are typically listed in square feet, while farms, ranches, and rural properties are listed in acres. Zoning codes specify minimum lot sizes in acres — for example, R-1 zoning might require 0.5 acres per dwelling.

Converting Irregular Parcels

Real-world parcels are rarely perfect rectangles. Surveyors divide irregular shapes into triangles and trapezoids, calculate each sub-area, and sum the results. GIS software automates this from boundary coordinates. If you have a plat map with dimensions in feet, compute the total square footage first, then divide by 43,560 to get acres.

Sources & Methodology

Last updated:

Frequently Asked Questions

  • Exactly 43,560 square feet. This comes from the historical definition: 1 acre = 1 chain × 1 furlong = 66 ft × 660 ft.