Fabric calculator for curtains.
Amount of material for curtains.
Window curtains are always measured as width by length and the width is always stated first.
Measure your window s height.
Many windows need more fullness than one length of fabric will achieve.
1 5 times fullness is good for thicker fabrics 2 times fullness is average for draperies and sheers generally have 3 times fullness.
A heavier fabric will provide fullness that a lightweight fabric can not.
If it s an inside.
The simple online curtain fabric quantity calculator to calculate curtain fabric patterns repeat for your window curtains and drapes.
A simple rule of thumb is that a curtain is one and a half to two times the width of the area it is meant to cover.
Measure and note the height from where the rod is or will be if not already.
Divide the total in half if your treatment will separate in the middle.
Fullness amount of gather in the finished curtain.
Measure the width of your window starting at one end of your rod to the other end of the rod.
Measure from the edge of the extension on one side to the edge of the extension on the other side of the window.
The lighter the weight of the fabric the more fullness it will require.
Width of fabric rounded down to the nearest whole number often 46 54 or 60 inches 1168 1372 and 1524 mm close.
The length is always measured from the top of the rod pocket to the bottom of the panel.
For most treatments that require fullness the fabric for your width needs to be 2 1 2 times the width of this measurement.