Convert area between square meters, square kilometers, hectares, and the imperial family of square feet, square yards, acres and square miles. Useful for real estate, land surveys and gardening.
A hectare is exactly 10,000 m² and an acre is exactly 4,046.8564224 m². Because area units are squares of length units, the factors grow quickly — one square mile is 2.59 million square meters.
Frequently asked questions
How big is a hectare?
Exactly 10,000 square meters (0.01 km²), or about 2.47 acres.
How many square feet in an acre?
43,560 square feet — an acre is defined as one furlong by one chain.
How do I convert m² to ft²?
Multiply by 10.7639104. This converter applies the factor automatically as you type.
中文说明
在平方米、平方千米、公顷与平方英尺、平方码、英亩、平方英里等面积单位之间换算，适用于房产、土地测量与园艺场景。
1 公顷精确等于 10000 平方米，1 英亩精确等于 4046.8564224 平方米。面积单位是长度单位的平方，因此系数增长很快——1 平方英里约为 259 万平方米。
常见问题
一公顷有多大？
精确等于 10000 平方米（0.01 平方千米），约合 2.47 英亩。
一英亩是多少平方英尺？
43560 平方英尺——英亩的定义为一弗隆乘一链。
平方米怎么换算成平方英尺？
乘以 10.7639104 即可，本页在输入时会自动完成这一换算。