HesapHanem

Area Converter

How do I convert area units?

How it is calculated

The value is first converted to square metres using the exact factor of the chosen unit, then divided by each target factor to list every unit at once: result = value × factor(from) ÷ factor(target). Factors (m²): km² = 1,000,000; ha = 10,000; acre = 4,046.8564224; ft² = 0.09290304; yd² = 0.83612736. Results have two decimals, and values below 1 show more digits, so a small plot still shows a real figure in km². The tool uses the international acre and the international foot. Other local land units, like the dönüm, are not included. An unknown unit falls back to m².

Worked example

Convert 2.5 acres. In square metres: 2.5 × 4,046.8564224 = 10,117.14 m². In hectares: 10,117.14 / 10,000 = 1.01 ha. In square feet: 10,117.14 / 0.09290304 = 108,900.00 ft² (an acre is 43,560 ft²). In square yards: 12,100.00 yd². In km² the value is only 0.01 km².

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Common mistakes

  • Choosing hectares when the plot is in acres; one hectare is about 2.47 acres.
  • Mixing linear and square conversion: 1 yard is 3 feet but 1 yd² is 9 ft², not 3.
  • Expecting the dönüm or other local units to be in the list; they are not.

About this calculator

This tool converts a measurement of area between metric units (square meters, square kilometers, hectares) and imperial/US units (acres, square feet, square yards), applying the fixed conversion factors between each unit pair — for example, one hectare equals exactly 10,000 square meters and about 2.47 acres.

Real estate listings, land surveys, farming and construction plans routinely mix these unit systems depending on the country: hectares are common in land and farmland listings, acres dominate in the US and UK property market, and square meters or square feet are used for building floor plans. Buyers comparing a plot of land listed in acres against a domestic listing in square meters, or farmers converting hectares to acres, use this calculator to put both figures on the same footing.

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Comments (1)

  • Editorial team

    For land, 1 hectare is about 2.471 acres, and 1 acre is 4,046.86 m². Turkish listings often quote dönüm, which this tool does not include; the modern metric dönüm is 1,000 m², but ask the seller what they mean before relying on it. Which local land or room-size unit would you like to see added?

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