塗料用量計算器

使用方法

1. 1
   填寫各項

   輸入數字或選擇所需選項。

2. 2
   檢視結果

   更改任何值時，答案會立即更新。

3. 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

Enter the room length, width and height, the number of doors and windows, the coats and how much one litre covers. The calculator works out the wall area and the litres. Buy a little extra for touch-ups.

When to use it

Estimate how much paint a room needs, from wall area, doors, windows and coats.

Tips

Subtract doors and windows. Buy a little extra for touch-ups.

Privacy

Everything runs in your browser, so your data is not uploaded or stored.

Measuring

Multiply the room's perimeter by the wall height to get wall area. Subtract about 2 square metres for a door and 1.5 for a window. Add the ceiling if you are painting it.

計算示例

With the boxes at their starting values (Room length (m): 4.5; Room width (m): 3.5; Wall height (m): 2.8; Doors: 1; Windows: 2; Coats: 2), the tool shows: Wall area: 44.8 m²; Doors and windows: 4.7 m²; Area to paint: 40.1 m²; Paint needed: 8.0 L. 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。