Curtains & Windows

Curtain Fullness Calculator

Calculate achieved fullness from flat fabric width and track width.

Free interactive tool

Enter your details

m
m
Method & guidance

How the Curtain Fullness Calculator works

Total flat panel width is divided by the track width to produce the fullness ratio.

How to use this tool

  1. Collect accurate values for track width, flat width per panel, 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 Fullness Calculator method.
  4. Apply the result only after checking product specifications and real site conditions.

Example calculation or use case

For a worked Curtain Fullness Calculator example, use Track width = 2.2 m, Flat width per panel = 2.3 m, Panels = 2. The tool then applies this method: Total flat panel width is divided by the track width to produce the fullness ratio.

Frequently Asked Questions

What information does the Curtain Fullness Calculator use?

It uses the measurements and choices shown in the form. Total flat panel width is divided by the track width to produce the fullness ratio.

How accurate is the Curtain Fullness Calculator result?

The calculation is mathematically consistent with the stated assumptions. Use the fabric supplier’s recommended fullness for the selected heading style. 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