Curtains & Windows

Curtain Length Calculator

Find a finished curtain length from mounting point to your chosen floor treatment.

Free interactive tool

Enter your details

m
Method & guidance

How the Curtain Length Calculator works

Mount height and floor position are combined with a puddle or clearance adjustment.

How to use this tool

  1. Collect accurate values for rod/track height from floor, floor finish.
  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 Length Calculator method.
  4. Apply the result only after checking product specifications and real site conditions.

Example calculation or use case

For a worked Curtain Length Calculator example, use Rod/track height from floor = 2.55 m, Floor finish = Just touch floor. The tool then applies this method: Mount height and floor position are combined with a puddle or clearance adjustment.

Frequently Asked Questions

What information does the Curtain Length Calculator use?

It uses the measurements and choices shown in the form. Mount height and floor position are combined with a puddle or clearance adjustment.

How accurate is the Curtain Length Calculator result?

The calculation is mathematically consistent with the stated assumptions. Measure at the left, center, and right because floors and ceilings may not be level. 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.

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