Converter

Area Converter

Convert between 10 area units instantly. Supports square feet, square meters, acres, hectares, square miles, and more for real estate, land measurement, and construction.

Quick Answer

1 acre = 43,560 sq ft = 0.4047 hectares. 1 sq ft = 0.0929 sq m. 1 sq mile = 640 acres = 2.59 sq km. Select units below to convert between 10 area measurements in real time.

Convert Area

Enter a value and select units to convert.

1 Acres
0.4046856422 ha

All Equivalents

UnitValue
Square Millimeters (mm²)4,046,856,422
Square Centimeters (cm²)40,468,564.224
Square Meters (m²)4,046.8564
Square Kilometers (km²)0.0040468564
Square Inches (in²)6,272,640
Square Feet (ft²)43,560
Square Yards (yd²)4,840
Acres (ac)1
Hectares (ha)0.4046856422
Square Miles (mi²)0.0015625

Area Size Comparisons

Real-world references to help visualize different area measurements.

ReferenceApprox. Area
Parking space170 ft² (15.8 m²)
Studio apartment500 ft² (46.5 m²)
Tennis court2,808 ft² (260.9 m²)
Basketball court4,700 ft² (436.6 m²)
Football field1.32 acres (0.53 ha)
City block (NYC)2.5 acres (1 ha)
Central Park, NYC843 acres (341 ha)
Manhattan22.8 mi² (59.1 km²)

About This Tool

The Area Converter provides instant, accurate conversions between 10 commonly used area units spanning both metric and imperial systems. Whether you are comparing property sizes in square feet versus square meters, converting land measurements between acres and hectares, or working with architectural plans in different unit systems, this tool delivers real-time results.

Understanding Area Units

Area units represent two-dimensional space. When converting between length-based area units, the conversion factor is the square of the length conversion factor. For example, since 1 foot equals 0.3048 meters, 1 square foot equals 0.3048² = 0.0929 square meters. This squaring effect means area conversions can produce surprisingly large or small numbers compared to the simple length equivalents.

Real Estate and Land Measurement

In the United States, residential properties are typically measured in square feet (interior space) and acres or fractions of acres (lot size). One acre equals 43,560 square feet, roughly the size of a football field. In most other countries, properties are measured in square meters (interior) and hectares (land). One hectare is 10,000 square meters, or about 2.47 acres. When browsing international real estate listings, knowing these conversions is essential for comparing properties.

Quick Conversion Tips

For a quick mental estimate of square feet to square meters, divide by 10 and subtract 7% (or roughly divide by 10.76). For acres to hectares, multiply by 0.4 (the actual factor is 0.4047). For square miles to square kilometers, multiply by 2.6 (actual: 2.59). These approximations are close enough for quick comparisons and can be refined with this calculator when precision is needed.

Frequently Asked Questions

How many square feet are in an acre?
One acre equals exactly 43,560 square feet. An acre is roughly the size of a football field without the end zones (a full football field including end zones is about 1.32 acres). To visualize an acre, imagine a square approximately 209 feet on each side. In metric terms, one acre equals approximately 4,047 square meters or about 0.4047 hectares.
How do I convert square feet to square meters?
One square foot equals approximately 0.0929 square meters. To convert square feet to square meters, multiply by 0.0929. Conversely, one square meter equals approximately 10.764 square feet. This conversion is commonly needed in real estate (comparing property sizes listed in different units), flooring and renovation projects, and international property listings.
What is the difference between an acre and a hectare?
An acre equals approximately 0.4047 hectares, meaning one hectare is about 2.471 acres. Hectares are the standard unit for land measurement in most of the world and in scientific contexts, while acres are primarily used in the US, UK, and some Commonwealth countries. One hectare equals exactly 10,000 square meters (100m x 100m), making it easy to work with in the metric system.
How many acres are in a square mile?
One square mile contains exactly 640 acres. This relationship dates back to the US Public Land Survey System, where a section of land was defined as one square mile (640 acres). A square mile also equals approximately 2.59 square kilometers or 259 hectares. For reference, Manhattan is about 22.83 square miles (14,611 acres).
How do I calculate the area of an irregularly shaped property?
For irregular shapes, divide the area into simpler shapes (rectangles, triangles) and calculate each separately, then add them together. For a triangle, use base times height divided by 2. For complex boundaries, GPS-based mapping tools or survey measurements are more accurate. Our Square Footage Calculator can help with common shapes including rectangles, triangles, circles, and L-shapes.

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