Quilting math, done for you

Backing, binding, batting, borders, and precuts. Enter your quilt's measurements and get cutting-ready yardage in seconds, so you never cut expensive fabric wrong again.

Calculate my backing

The calculators

Why QuiltMath

Quilting math is the part of quilting nobody enjoys. Converting a quilt top into backing yardage, binding strips, and batting sizes means juggling fabric widths, seam allowances, and overhang requirements, usually at 10pm with a rotary cutter in hand. We do that arithmetic for you, show our work, and round up so you never come up half a yard short.

Every calculator is free, works on your phone, and requires no account. Built and maintained by King Winston Media.