Have you ever miscalculated your quilting fabric, only to run out in the middle of piecing your quilt top? There are many free tools you can use to help you avoid this mistake before it happens. One of the most popular quilting calculators is available for free online at Quilter's Paradise . You can use this tool to calculate your yardage needed for quilt backing, batting, binding, borders. It also has some great tools for calculating how many fixed-size pieces you can cut from fabric yardage.