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スペースの面積を計算する
長方形・三角形・円の面積を平方フィートと平方メートルで計算します(寸法を明示)。
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アカウント不要The calculation runs locally using browser APIs; it does not require uploading measurements. Optional analytics and advertising have separate consent and privacy disclosures. Avoid sensitive inputs.
- Area in square feet
- 120 ft²
- Area in square metres
- 11.1483648 m²
Rectangle = length × width; triangle = base × perpendicular height / 2; circle = pi × (diameter / 2)². Split irregular plans into shapes and handle overlaps separately.
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