Curtain Fabric
Estimate the fabric yards needed to make curtains.
About Curtain Fabric
The fullness factor inflates the needed width so curtains hang with soft gathers. Panels are the width divided by fabric width, and length sets the yards per panel. Curtains need more than the window width to drape well, so the fullness factor is what keeps them from looking flat and skimpy.
Formula
Curtain Fabric
Fabric = panels x (curtain length / 36)
- fullness
- How gathered the finished curtain is
Worked example
With the default values below, Curtain Fabric returns Panels Needed of 3. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Window widthminimum 0 inches
- 72 inches
- Curtain lengthminimum 0 inches
- 84 inches
- Fullness factorminimum 1 x
- 2 x
- Fabric widthminimum 0.01 inches
- 54 inches
Results
- Panels Needed
- 3
- Fabric Needed
- 7.0 yd
- Fabric Needed (m)
- 6.40 m
- Yards per Panel
- 2.33 yd
Step by step
- 1Values used
- 2Curtain Fabric
- 3Panels Needed= 3
- 4Fabric Needed= 7.0 yd
- 5Fabric Needed (m)= 6.40 m
- 6Yards per Panel= 2.33 yd
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Curtain Fabric calculated?
Fabric = panels x (curtain length / 36) The fullness factor inflates the needed width so curtains hang with soft gathers. Panels are the width divided by fabric width, and length sets the yards per panel.
Why does Curtain Fabric matter?
Curtains need more than the window width to drape well, so the fullness factor is what keeps them from looking flat and skimpy.
What values do I need to enter?
This calculator takes 4 inputs: Window width, Curtain length, Fullness factor, Fabric width. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.