Wall Area Calculator
Formula: 2 x (Length + Width) x Height
Enter room length, width, and height in any unit. The wall area is shown in m2.
Example
Formula: 2 x (Length + Width) x Height = 2 x (5 m + 4 m) x 2.8 m = 50.40 m2
Step-by-step calculation
- Enter room length, width, and height.
- Select units for each input.
- Calculate to get wall area in m2.
FAQ
- Do I subtract doors/windows?
- For paint, subtract large openings for accuracy.
- Why use perimeter?
- It accounts for all walls in a rectangular room.