1. What is the Curtain Size Formula?

The curtain size formula calculates the total width needed for curtains based on your window width and desired overhang on each side. This ensures proper coverage and aesthetic appearance.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• Window Width — The actual width of your window
• Overhang — The amount you want the curtain to extend beyond the window on each side

Explanation: The formula accounts for coverage on both sides of the window, doubling the overhang measurement.

3. Importance of Proper Curtain Sizing

Details: Correct curtain sizing ensures proper light control, privacy, and aesthetic appeal. Too small curtains look skimpy while too large may not function properly.

4. Using the Calculator

Tips: Measure your window width precisely. Standard overhang is typically 3-6 inches per side for a balanced look. For a fuller appearance with gathered curtains, you may need 1.5-3 times the window width.

5. Frequently Asked Questions (FAQ)

Q1: Should I measure the window frame or glass area?
A: Typically measure the entire window including the frame, unless you're mounting inside the frame.

Q2: What's a standard overhang amount?
A: 3-6 inches per side is common, but this depends on your aesthetic preference and curtain style.

Q3: How does this change for multiple curtain panels?
A: The total width remains the same, but you'll divide this measurement by the number of panels.

Q4: Should I add extra for hems?
A: This calculator gives the finished width. You'll need additional fabric for hems (typically 1-2 inches per side).

Q5: Does this work for all curtain types?
A: This works for standard curtains. Special styles like tab-top or grommet-top may require adjustments.