1. What is the Curtain Width Formula?

The curtain width formula calculates the total fabric width needed for curtains based on your window width and desired fullness. Proper fullness creates elegant folds and ensures the curtains look full when closed.

2. How Does the Calculator Work?

The calculator uses the curtain width formula:

Where:

• Window Width — The width of your window in centimeters
• Fullness Ratio — Typically 2 for standard fullness, 2.5 for extra fullness, or 1.5 for light fullness

Explanation: The formula accounts for the additional fabric needed to create proper pleating and gathering when the curtains are closed.

3. Importance of Proper Curtain Sizing

Details: Correct curtain width ensures proper functionality (opening/closing smoothly) and aesthetic appeal (creating beautiful folds). Too little fabric looks skimpy, while too much can be overwhelming.

4. Using the Calculator

Tips: Measure your window width precisely. Common fullness ratios are 2 (standard), 2.5 (luxury), or 1.5 (budget). For multiple panels, divide the total curtain width by the number of panels.

5. Frequently Asked Questions (FAQ)

Q1: What's a standard fullness ratio?
A: 2 is standard, meaning your curtains should be twice as wide as your window when gathered.

Q2: How do I measure window width?
A: Measure the width of the window frame or the rod (for inside mounts) or the area you want to cover (for outside mounts).

Q3: What if I have multiple curtain panels?
A: The calculated width is the total needed. Divide by the number of panels (usually 2) to get each panel's width.

Q4: Does fabric type affect fullness?
A: Yes, lightweight fabrics may need higher fullness ratios (2.5-3) while heavy fabrics can use lower ratios (1.8-2).

Q5: Should I add extra for hems?
A: This calculator gives the finished width. Add hem allowances (typically 5-10cm per side) to your fabric purchase.