Curtain Fabric Length
Curtain Fabric Length
Estimate fabric length from whole widths and a chosen fullness.
How it works
Estimate fabric length from whole widths and a chosen fullness.
Using this calculator
Enter window width (cm), finished curtain drop (cm), fullness multiplier, total vertical hem allowance (cm), usable fabric width (cm). fabric length = ceiling(window × fullness / fabric width) × (drop + hem).
What to keep in mind
A quantity estimate using your measurements, not a structural design, building-code check or purchasing specification. Allow for real shapes, cutting and the product instructions.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.