Quilt Math Quilting Tools

Quilt Math — 30 Fabric & Yardage Calculators & Tools for Quilters

Stop guessing how much fabric to buy. Quilt Math is a complete set of free quilting calculators that tell you exactly how much fabric, batting, and binding you need — plus reference guides and color-matching tools for every stage of a project.

17 Free Calculators • Borders (up to 4 sequential rounds) & Lengthwise Borders • Backing & Batting, plus Diagonally Pieced Backing • Binding (double-fold) & Bias Tape • Sashing with optional cornerstones • Blocks Needed — how many blocks for any standard bed size • Piece to Yardage & Yardage to Piece • Strip to Yardage • T-Shirt Quilt • Setting Triangles & Flying Geese • Square-in-a-Square & Shape Calculator • Equivalent-Area Yardage

Every calculator shows its own "How this is calculated" breakdown, so you're never just trusting a black box.

10 Reference Guides Standard quilt sizes, a measurement converter, PreCut and needle guides, a machine embroidery stabilizer guide, a batting type guide, and troubleshooting help for sewing machines, longarms, sergers, and embroidery machines.

Color Conversion Tools Find the closest-matching color across thread brands (Glide, Isacord, Exquisite, Madeira, Hemingworth & more), solid quilting fabric lines (Kona, Bella, Confetti Cottons & more), and embroidery floss (DMC, Cosmo, and Anchor) — search by name/number or start from a swatch.

Track Your Projects (Maker & Master Quilter) Sign in to save your calculation history across devices, organize results into quilt projects, and build a shopping list with categories.

Pricing • Free — every calculator, unlimited use, forever • Maker ($1.99/mo or $19.99/yr) — cloud sync, up to 100 saved calculations, 10 quilt projects, 100-item shopping list, Conversion Tools included • Master Quilter ($5.99/mo or $59.99/yr) — up to 1,000 saved calculations, 10 devices, 100 quilt projects, 1,000-item shopping list,, Conversion Tools included • Conversion Tools only ($9.99/yr) — just the Thread, Fabric, and Floss conversion tools, for Free accounts that don't need the rest

No ads. No account required to use any calculator. Built for quilters, by Quilt Elements.