幾何計算器
常見圖形的面積、周長、表面積和體積。
在您的瀏覽器中執行。您的檔案不會離開裝置。 瞭解如何驗證
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使用方法
- 1填寫各項
輸入數字或選擇所需選項。
- 2檢視結果
更改任何值時，答案會立即更新。
- 3使用結果
複製結果或記下來。不會向任何地方傳送任何內容。
About this tool
Choose a shape and enter its measurements. The calculator gives the area and perimeter of flat shapes, and the surface area and volume of solids. Use the same unit for every measurement; the answer is in that unit squared or cubed.
When to use it
Area, perimeter, surface area and volume of common shapes.
Tips
Use the same unit for all measurements.
Privacy
Everything runs in your browser, so your data is not uploaded or stored.
Formulas
Circle area is pi r squared, circumference 2 pi r. Triangle area is half base times height. Sphere volume is 4/3 pi r cubed and cylinder volume is pi r squared h.
計算示例
With the boxes at their starting values (Shape: Circle; Radius: 5; Length: 6; Width: 4; Side: 5; Base (or first parallel side): 6), the tool shows: Circumference: 31.4159; Diameter: 10; Area: 78.5398. Change any box to see your own numbers. The result updates as you type, and nothing leaves your browser.
獲得最佳結果的提示
在相信結果之前先檢查每一個輸入項，因為一個錯誤的數字就會改變整個答案。請使用工資單、賬單、證書或合同上的準確數字，並記下計算日期。稅率、門檻和規則會不時變化，因此對於稅費和法律事務，請將結果視為估算，並與本頁註明的官方來源核對。您可以嘗試任意多個方案；不會儲存或傳送任何內容，重新整理頁面會清空輸入。
要點
- 分類: 日常工具
- 在瀏覽器中執行，無需註冊，無需上傳。
- 您輸入的資訊保留在裝置上。
- 提供多種語言。
- 內容最後稽核日期:
常見問題
Which shapes are included?
Circle, rectangle, square, triangle, trapezoid, sphere, cylinder, cone and cube.
What units should I use?
Any, as long as you use the same one for all values. The area is in square units and the volume in cubic units.
Which shapes are included?
Circle, rectangle, triangle, sphere, cylinder, cone and more.
Are formulas shown?
Yes, the formula is shown for each result.
Which unit does it use?
Whatever unit you enter. Areas come out in that unit squared.