Calculators and Charts

We all need them! There are times when I can’t even think of my basic Multiplication Chart, much less figuring out how much backing or binding I will need. Here are some calculators and charts you can use when you are online and printable charts to use when you are not.

Fabric and Yardage

  • Backing and Binding Calculator
  • Diagonal Backing Calculator
  • Batting Calculator (How much batting to buy)
  • Quilting Density Calculator (Estimate thread requirements.)
  • Binding Charts to Print and Save
  • Border Yardage Calculator (Calculates fabric needed for multiple borders of varying widths.)
  • Sashing Calculator (Determines yardage for sashing strips and cornerstones.)
  • Setting Triangle Calculator (For on-point quilts.)
  • Fabric Requirement Calculator (Enter block size and quilt size, estimate yardage.)
  • Strip-Piecing Calculator (How many strips are needed to produce a given number of units.)
  • Jelly Roll Conversion Calculator (Converts jelly roll strips into equivalent yardage.)
  • Fat Quarter Calculator (How many fat quarters are needed for a project.)
  • Fat Quarter Yield Calculator (How many pieces of a given size can be cut from one fat quarter.)
  • Scrap Yardage Calculator (Convert scraps into approximate yardage equivalents.)

Quilt Sizes

  • Quilt Size Calculator (Finished quilt size based on blocks, sashings, and borders.
  • Block Layout Calculator (How many blocks are needed for a desired quilt size.
  • Border Width Calculator (Determine border widths needed to reach a target size.
  • Mattress Size Calculator (Includes mattress depth and drop.
  • Quilt-to-Bed Proportion Calculator (For modern, traditional, and oversized bed quilts.

Blocks

  • Half-Square Triangle Calculator (Traditional Methods including 2-at-a-time and 4-at-a-time)
  • HST and QST Technique Sheet
  • Quarter-Square Triangle Calculator
  • Flying Geese Calculator (No Waste, Quilt in a Day, Traditional)
  • Square-in-a-Square Chart
  • Corner Triangle Calculator
  • Snowball Corner Calculator
  • Diamond Calculator
  • Hexagon Calculator
  • Equilateral Triangle Calculator
  • Attic Window Calculator
  • Square in a Square Blocks
  • Flying Geese No Math Method
  • Flying Geese QIAD Method
  • Magic Eight HST Method
  • QSTs From Magic Eight
  • 3-Part Split QST Blocks
  • Quarter Square Triangle Blocks (QSTs)
  • Hidden Wells
  • Economy Block
  • On Point Blocks

Techniques

Quilt Math

  • Scale a Block Calculator (Resize a block while preserving proportions.
  • Percentage Enlargement Calculator
  • Metric / Imperial Converter
  • Fraction to Decimal Converter
  • Quilt Math Calculator (Add, subtract, multiply, and divide fractions commonly used in quilting.

BiographyKris Driessen brings warmth and creativity to every corner of the quilting world. A former quilt shop owner and passionate pattern designer for PhoebeMoon Quilt Designs, she’s spent years inspiring quilters of all skill levels through her clever designs, time-saving techniques, and hands-on teaching. Whether sharing beginner-friendly projects, guiding advanced quilting methods, or creating step-by-step tutorials, Kris loves helping others grow in their craft. You’ll find her tutorials and quilting know-how woven throughout Quiltweb, alongside the guilds, shops, and community resources that make this site a one-stop home for quilters.

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