面积计算器
计算房间、墙面、院子或不规则区域的面积——矩形、圆形、三角形和环形边带——并换算为平方米、平方码或英亩。
公式与数据最后核对于 — Cosyslabs
输入
Result
Square feet
120 ft²
Square yards
13.3 yd²
- Square metres
- 11.1 m²
- Acres
- —
- Areas measured
- 1
Diagram
Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.
公式
矩形：A = 长 × 宽 · 圆形：A = π × (直径 ÷ 2)² · 三角形：A = ½ × 底 × 高
参考资料
Related tools & materials
Don't forget
- 卷尺
- 激光测距仪
- 方格纸
Also useful
常见问题
长乘以宽即可。3.6 × 3 米的房间是 10.8 平方米。圆形用 π × 半径²，三角形用底乘高再除以二。
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Cosyslabs. (2026). 面积计算器. Rough Estimator!. https://roughestimator.com/zh/square-footage-calculator
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