Area Converter
Convert m², hectare, mu, acre, ft² and in² instantly.
Inputs
m²
ha
亩
ac
ft²
in²
About Area Units
- The square meter (m²) is the SI unit of area, defined as the area of a square with sides of exactly 1 metre. Metric area units scale by factors of 100 — 1 hectare (ha) = 10,000 m² and 1 km² = 1,000,000 m².
- The acre (ac) and square foot (ft²) are imperial area units. 1 acre = 43,560 ft², originally defined as the area a yoke of oxen could plough in a day. The square inch (in²) is used for small cross-sections in mechanical and structural engineering.
- The mu is the traditional Chinese unit of land area, standardised at 1/15 of a hectare (≈ 666.67 m²). It remains the primary unit for agricultural land measurement in China alongside the hectare.
- Quick reference: 1 ha = 10,000 m² = 15 mu = 2.471 ac · 1 ac = 4,046.86 m² = 43,560 ft² · 1 ft² = 144 in² = 929.03 cm².
| 1 单位 | = m² | = ft² | = ac |
|---|---|---|---|
| 平方米(m²) | 1 | 10.7639 | 0.000247 |
| 公顷(ha) | 10,000 | 107,639 | 2.47105 |
| 亩(亩) | 666.667 | 7,176.4 | 0.16474 |
| 英亩(ac) | 4,046.86 | 43,560 | 1 |
| 平方英尺(ft²) | 0.092903 | 1 | 0.0000229568 |
| 平方英寸(in²) | 0.000645 | 0.006944 | 1.594e-7 |