Curtains & Windows

Curtain Width Calculator

Calculate the total flat curtain width needed for a selected fullness level.

Free interactive tool

Enter your details

m
Method & guidance

How the Curtain Width Calculator works

Rod width is multiplied by fullness and divided across the chosen panel count.

How to use this tool

  1. Collect accurate values for rod width, fullness, panels.
  2. Enter measurements in the displayed units and select the choices that match this project.
  3. Select Calculate / Generate, then compare the outputs with the stated Curtain Width Calculator method.
  4. Apply the result only after checking product specifications and real site conditions.

Example calculation or use case

For a worked Curtain Width Calculator example, use Rod width = 2.2 m, Fullness = 2, Panels = 2. The tool then applies this method: Rod width is multiplied by fullness and divided across the chosen panel count.

Frequently Asked Questions

What information does the Curtain Width Calculator use?

It uses the measurements and choices shown in the form. Rod width is multiplied by fullness and divided across the chosen panel count.

How accurate is the Curtain Width Calculator result?

The calculation is mathematically consistent with the stated assumptions. Sheer fabrics often look better at 2.5–3× fullness; heavy fabrics need less. Real products, site conditions, and supplier specifications can still change the final decision.

Should I include an allowance?

Use the result as a planning baseline and keep a sensible reserve for site variation, delivery, or fitting.

100+Powerful tools
10Tool categories
100%Free to use
PrivateNo account needed