Quilt Backing Calculator
Calculate fabric needed for quilt backing
About this calculator
The Quilt Backing Calculator helps quilters determine the exact amount of fabric needed for their quilt backing based on quilt dimensions and fabric width. This essential tool prevents costly overbuying or frustrating shortages by calculating precise yardage requirements. Whether you're working with standard 44-inch cotton or wider backing fabrics, this calculator ensures you purchase the right amount of material while accounting for seaming and quilting requirements.
How to use
Enter your finished quilt's length and width measurements in inches or yards. Select your backing fabric width from common options like 44", 60", or 108". The calculator will instantly display the total yardage needed, including recommended extra fabric for trimming and potential shrinkage during quilting.
Frequently asked questions
How much extra fabric should I add for quilting?
Most quilters add 4-6 inches on all sides, totaling 8-12 inches to both length and width for proper overhang during quilting.
Can I use multiple fabric widths for backing?
Yes, you can piece narrower fabrics together. The calculator shows seaming requirements when your quilt exceeds single fabric width.
What's the difference between 44" and 108" backing fabric?
44-inch is standard quilting cotton requiring seaming for larger quilts, while 108-inch wide backing eliminates seams for most quilt sizes.