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Pillow Size Formula:
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The Sailrite Pillow Size Calculator helps determine the area of pillow fabric needed for your project. It calculates the total square inches based on length and width measurements, which is essential for proper fabric estimation and project planning.
The calculator uses the simple area formula:
Where:
Explanation: This calculation gives you the total area in square inches, which helps determine how much fabric you'll need for your pillow project.
Details: Accurate sizing is crucial for proper fabric estimation, cost calculation, and ensuring your finished pillow has the right dimensions. Underestimating can lead to insufficient materials, while overestimating wastes resources.
Tips: Measure your pillow form or desired finished dimensions carefully. Enter length and width in inches. All values must be positive numbers. For irregular shapes, break into rectangular sections and calculate each separately.
Q1: Should I add seam allowance to my measurements?
A: This calculator gives you the finished size area. You'll need to add appropriate seam allowances (typically ½ inch on each side) to your fabric cutting dimensions.
Q2: How do I convert square inches to yards of fabric?
A: Divide total square inches by 1,296 (36×36) to get square yards. Then account for fabric width and pattern repeat if applicable.
Q3: What if my pillow isn't rectangular?
A: For circular pillows, use πr² formula. For other shapes, break them down into measurable rectangles or use graph paper to estimate area.
Q4: How much extra fabric should I buy?
A: It's recommended to add 10-15% extra for pattern matching, errors, and future repairs, especially for patterned fabrics.
Q5: Does this work for pillow inserts too?
A: Yes, use this calculator to determine the appropriate insert size needed for your pillow cover based on your desired finished dimensions.