Curtain fabric quantity calculator

Use our handy curtain fabric calculator to help you work out how much fabric to order for your curtains. It works for all of the heading types we offer, and it makes the right allowances for pattern repeat, fullness, headings and hems.

Enter your measurements and curtain details below and the calculator will tell you the amount of fabric required.

cm
Either provide the length of your existing track/pole (excluding finials) or estimate based on your window opening. Usually the pole/track extends beyond the window width by between 15cm (6in) and 35cm (14in) each side of the window opening. See our measuring guide for more information on how to measure.
cm
Enter the required finished length from curtain top to hem. The calculator adds an allowance of 30cm (12in) per drop for hems and headings. See our measuring guide for more information on how to measure.
The type of curtain heading will determine the appropriate fullness options for your curtains, which will be presented below upon selection.
cm
You can find this under Additional Information on your chosen fabric page. If you are using the width as the drop, please call us.
cm
You can find this under Additional Information on your chosen fabric page. If there is no vertical pattern repeat, leave this blank.
Number of identical curtains
If your fabric has a distinctive pattern, and is only to be used for these curtains, you may want to add the length of one pattern repeat to ensure that you can start the pattern in the best possible position.
Our calculations are based on:
  • 30cm (12in) added for hems and heading turnings

Please note: The calculator is not suitable if using fabric sideways

Helpful links

Quantity calculators

Speak to the team

Our friendly customer service specialists are here to help with your fabric quantities.