Area Converter

Convert between square metres, square feet, acres, hectares and more, with the formula shown for each conversion.

How area conversion works

Every unit here is defined against the square metre. Converting means dividing by the source unit's factor and multiplying by the target unit's factor, the same base-unit method used by every converter on this site.

Two conversions come up most often: 1 square metre is about 10.764 square feet, and 1 acre is about 4,046.86 square metres, which is roughly 43,560 square feet.

Reference points

UnitEqual toTypical use
1 m²10.7639 ft²Room and floor plans
1 acre4,046.86 m²US and UK land and real estate
1 hectare10,000 m²Farmland, most of the world outside the US
1 hectare2.4711 acresComparing farmland across countries
1 km²0.3861 mi²City and regional area

Where each unit is used

Square metres and hectares are the standard in most of the world, including for land, farms and property listings. The United States mostly uses square feet indoors and acres for land and real estate, which is why a US property listing gives room sizes in square feet but lot size in acres. Square miles appear mainly for describing the area of cities, counties or countries.

Common questions

About 10.764 square feet. The exact factor is 1 m² = 1 / 0.09290304 ft², since 1 foot is defined as exactly 0.3048 metres.
4,046.8564224 square metres exactly. An acre was originally the area a team of oxen could plough in a day, and was later fixed to this precise metric value by international agreement.
Yes. A hectare is exactly 10,000 square metres, which works out to about 2.47 acres, so a hectare is roughly two and a half times the size of an acre.
A square mile is a much larger unit: there are exactly 640 acres in one square mile. Square miles are used for describing the size of cities or regions, while acres are used for individual plots of land.

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