面积换算器
经 SI 平方米换算。国际精确系数，并显示针对你输入的算式。
默认为您所在地区。可切换以比较其他标准。
Canonical unit is the square metre. Imperial areas use exact squared international inch factors; 1 acre = 4046.8564224 m².
结果
1,076.391 ft²
m² → ft²
100 m² × 1 = 100 m²; 100 ÷ 0.09290304 = 1,076.391 ft²
- 换算为 SI 平方米100 m²
- 系数（从）1 m² = 1 m²
- 系数（到）1 ft² = 0.09290304 m²
- 计算方式100 m² × 1 = 100 m²; 100 ÷ 0.09290304 = 1,076.391 ft²
- 交叉汇率1 m² = 10.76391 ft²
Via the square metre (SI)
标准：BIPM SI + 国际英亩（正好 4046.8564224 m²）。100 m² × 1 = 100 m²; 100 ÷ 0.09290304 = 1,076.391 ft²
全部等价单位
| Unit | Symbol | Value | Factor to m² |
|---|---|---|---|
| mm²（平方毫米） | mm² | 100,000,000 | 1 mm² = 0.000001 m² |
| cm²（平方厘米） | cm² | 1,000,000 | 1 cm² = 0.0001 m² |
| dm²（平方分米） | dm² | 10,000 | 1 dm² = 0.01 m² |
| m²（平方米） | m² | 100 | 1 m² = 1 m² |
| a（公亩） | a | 1 | 1 a = 100 m² |
| ha（公顷） | ha | 0.01 | 1 ha = 10000 m² |
| km²（平方千米） | km² | 0.0001 | 1 km² = 1000000 m² |
| in²（平方英寸） | in² | 155,000.31 | 1 in² = 0.00064516 m² |
| ft²（平方英尺） | ft² | 1,076.391 | 1 ft² = 0.09290304 m² |
| yd²（平方码） | yd² | 119.599005 | 1 yd² = 0.83612736 m² |
| ac（英亩） | ac | 0.02471054 | 1 ac = 4046.8564224 m² |
| mi²（平方英里） | mi² | 0.000038610216 | 1 mi² = 2589988.110336 m² |
公式
value_m2 = 数值 × 源单位系数结果 = value_m2 ÷ 目标单位系数1 ft² = 0.09290304 m²（精确 = (0.3048)²）1 ac = 4046.8564224 m²（精确 = 43560 ft²）1 ha = 10000 m² · 1 a = 100 m²
计算方法
- Enter an area and pick From / To units.
- Convert to square metres: value_m2 = value × factor_from (e.g. 1 ft² = 0.09290304 m²).
- Convert to the target: result = value_m2 ÷ factor_to.
- 在步骤行中查看本次输入的精确算式。
- Open the equivalents table to see mm², cm², m², ft², ha, ac, mi² and more at once.
常见问题
How does area conversion work?
All areas go through the square metre: multiply by the source factor to get m², then divide by the target factor. Example: 100 ft² → 100 × 0.09290304 = 9.290304 m².
How many square metres in an acre?
The international acre is exactly 43 560 square feet = 4046.8564224 m² (NIST / BIPM path via the international foot).
What is a hectare vs an are?
One are (a) is exactly 100 m². One hectare (ha) is exactly 100 ares = 10 000 m² = 0.01 km². Both are SI-accepted land-area units.
结果是官方计量建议吗？
No. Calculate This is educational. For legal metrology (cadastre, surveying), use your national institute’s guidance and calibrated instruments.