Quilting calculators that do the math for you
Cutting sizes for half-square triangles, quarter-square triangles and flying geese, plus yardage for binding, backing and pieces. Every result shows its formula, rounds the way quilters cut, and works on your phone at the cutting table.
Units
Units
Half-Square Triangle (HST) Calculator
What size squares to cut for half-square triangles, how many you need, and how much fabric to buy.
UnitsQuarter-Square Triangle (QST) Calculator
Cut sizes for hourglass / quarter-square triangle units and how many squares of each fabric you need.
UnitsFlying Geese Calculator
Cut sizes for flying geese with the no-waste (four at a time) or the traditional stitch-and-flip method.
Finishing
Finishing
Quilt Binding Calculator
How many width-of-fabric strips you need for binding, and how much fabric to buy.
FinishingQuilt Backing Calculator
How much backing fabric to buy, with the cheapest seam direction worked out for you.