Converters

Area Converter

Convert any area measurement between square millimeters, centimeters, meters, kilometers, inches, feet, yards, miles, acres, and hectares.

Enter a value above to see the conversion.

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How Area Conversion Works

All area units are expressed as a fixed ratio to the square meter — the SI base unit of area. To convert from unit A to unit B, the value is multiplied by the square-meter factor of A, then divided by the square-meter factor of B.

result = value × (A_to_m² / B_to_m²)

Example: 500 ft² → m² = 500 × (0.0929 / 1) ≈ 46.45 m²

Metric

  • 1 km² = 1,000,000 m²
  • 1 ha = 10,000 m²
  • 1 m² = 10,000 cm²

Imperial

  • 1 mi² = 640 ac
  • 1 ac = 43,560 ft²
  • 1 yd² = 9 ft²

Metric vs Imperial Area Units

The metric system expresses area in square meters and its multiples. Hectares (10,000 m²) are the standard for agricultural land globally, while square kilometers are used for geographic regions and countries.

Imperial area units — square feet, square yards, acres, and square miles — are common in the United States for real estate, construction, and land. Square feet dominate interior measurements, acres are used for land plots, and square miles for large geographic areas.

Frequently asked questions

How many square feet are in a square meter?
One square meter equals approximately 10.7639 square feet. To convert square meters to square feet, multiply the value by 10.7639. To convert back, multiply square feet by 0.0929.
How do I convert acres to square meters?
Multiply the acre value by 4046.856 to get square meters. For example, 2 acres × 4046.856 = 8093.71 m². To reverse the conversion, divide square meters by 4046.856.
What is a hectare?
A hectare is a metric unit of area equal to 10,000 square meters or approximately 2.471 acres. It is widely used in agriculture and land measurement.
How many acres are in a square mile?
There are exactly 640 acres in one square mile. This means one acre is 1/640th of a square mile, or approximately 4,047 square metres.
What is the difference between square yards and square feet?
One square yard equals 9 square feet (3 ft × 3 ft). Square yards are often used for flooring and carpeting.

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