If there is no curtain currently in place, then one should be fitted first and positioned around the following dimensions.

Curtain Fabric Calculator | How Much Fabric | Jane Clayton

Either provide the length of your existing track/pole (excluding finials) or estimate based on your window opening.The Curtina range of ready-made curtains are made with expertly selected woven fabrics for extra luxury. We will then calculate how much needs to be added to this measurement (B), and recommend the correct track size for your window.

curtains How to measure your windows to get the correct size curtains

There is a slightly different measuring technique depending on whether your are fitting a made to measure blind or made to measure curtain. If you prefer standard curtain fullness, for an 84-inch window, you would require a 144-inch wide curtain.This extra distance is to take into account the space needed for the curtains to be drawn back on either side of the window (but does not include finial size). In this case to convert 46 x 72 inches into cm we should multiply the length which is 46 inches by 2. Once you have measured your window, you should then enter the result in the height field of our curtain size calculator and choose your desired style from the type of curtain field.