Net Curtain Calculator


In the realm of interior design, accurate measurements are paramount. Whether you’re a homeowner, a decorator, or a professional designer, having the right tools to calculate dimensions can streamline the process and ensure precision. One such tool is the net curtain calculator, a handy device that aids in determining the required fabric for net curtains.

How to Use

Using the net curtain calculator is straightforward. Simply input the necessary measurements into the designated fields and click the “Calculate” button to obtain the desired result. The calculator will then provide you with the precise amount of fabric needed for your net curtains.


The formula used in the net curtain calculator is based on the area of the window or opening that requires coverage. It takes into account the width and height of the window, as well as any additional factors such as desired fullness or hem allowances. The formula can be expressed as:



  • Width is the width of the window.
  • Height is the height of the window.
  • HemAllowance is the additional fabric required for hems.
  • Fullness is the desired fullness of the curtains.

Example Solve

Let’s consider an example where we have a window with a width of 60 inches and a height of 40 inches. Assuming a hem allowance of 2 inches and a desired fullness of 1.5, the calculation would be as follows:


Q: Can I use the net curtain calculator for irregularly shaped windows?
A: Yes, the net curtain calculator can accommodate irregular shapes by inputting the widest width and tallest height of the window.

Q: What is the significance of the fullness factor in the formula?
A: The fullness factor accounts for the amount of gathering or pleating desired in the curtains. A higher fullness value will result in fuller curtains with more fabric.

Q: Is the hem allowance necessary for the calculation?
A: Yes, the hem allowance ensures that there is enough fabric for sewing hems along the edges of the curtains.


The net curtain calculator is a valuable tool for anyone involved in curtain making or interior design. By providing accurate measurements, it simplifies the process of determining the required fabric for net curtains, saving time and minimizing waste.

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