Area Conversion Calculator
Convert between all area units instantly — square metres, square feet, acres, hectares, square kilometres, square miles, and more. Enter a value and choose a unit to see all conversions at once.
Metric Units
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Imperial / US Units
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Common Area Conversions
Frequently Asked Questions
An acre is an imperial unit equal to 4,047 m² (43,560 ft²), originally the area a yoke of oxen could plough in a day. A hectare is a metric unit equal to 10,000 m² (100m × 100m). One hectare equals approximately 2.471 acres. Hectares are used internationally for land area; acres are still common in the US and UK.
A hectare is 10,000 square metres — a square that is 100 m × 100 m. It is slightly smaller than two soccer/football pitches. One hectare equals 2.471 acres. A typical city block in the US is roughly 0.8–2 hectares, and a standard football field (including end zones) is about 0.53 hectares.
Multiply square feet by 0.092903 to get square metres. For example, 1,000 ft² × 0.092903 = 92.9 m². To go from m² to ft², multiply by 10.7639.
One acre equals exactly 43,560 square feet. It also equals 4,047 square metres, 4,840 square yards, or about 0.4047 hectares.
Square nautical miles are used in maritime and aviation contexts for measuring sea areas, exclusive economic zones, and airspace. One square nautical mile equals approximately 3.43 km² or 1.325 square statute miles. The total area of Earth's oceans is about 139 million square nautical miles.
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