1. What is the Fabric Yardage Formula?

The fabric yardage formula calculates the amount of fabric needed for pillow projects based on pillow dimensions and seam allowance. This ensures you purchase the right amount of fabric for your sewing projects.

2. How Does the Calculator Work?

The calculator uses the fabric yardage formula:

Where:

• \( D \) — Pillow dimensions (inches)
• \( S \) — Seam allowance (inches)
• \( FY \) — Fabric yardage (yards)

Explanation: The formula accounts for both sides of the pillow plus seam allowance, converting the total from inches to yards (since 1 yard = 36 inches).

3. Importance of Accurate Fabric Calculation

Details: Accurate fabric calculation prevents waste and ensures you have enough material for your pillow project. It helps with budgeting and reduces multiple trips to the fabric store.

4. Using the Calculator

Tips: Enter pillow dimensions in inches, seam allowance in inches. Both values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why multiply dimensions by 2?
A: This accounts for both the front and back pieces of the pillow.

Q2: What is a typical seam allowance?
A: Standard seam allowance is usually 0.5-1 inch, depending on the project and fabric type.

Q3: Should I add extra for pattern matching?
A: Yes, if using patterned fabric, add 10-20% extra yardage for pattern matching.

Q4: Does this work for all pillow shapes?
A: This formula works best for square and rectangular pillows. Circular or irregular shapes may require different calculations.

Q5: What if I'm making multiple pillows?
A: Multiply the result by the number of pillows, but consider fabric width for efficient cutting layout.