Quilting calculators
Quilt math is mostly simple arithmetic, but it is easy to slip a fraction when you are standing at the cutting table. These calculators do the yardage and cut sizes for you, in inches with fractions to the nearest ⅛", and in metric.
Planning a bed quilt? Start with the quilt size chart, add borders, then work out backing, batting and binding. For block units, use the HST, QST, flying geese and square in a square calculators, and the fat quarter calculator to see how far your precuts go.
Yardage & fabric
How much to buy for the back, binding, batting and borders.
- Quilt Backing CalculatorBacking yardage for 42", 54", 60" or 108" fabric, with the seam layout drawn for you.
- Quilt Binding CalculatorHow many strips to cut and how much fabric to buy, plus a fat-quarter option.
- Quilt Batting CalculatorBatting size, the smallest package that fits, and wide batting by the yard.
- Quilt Border CalculatorStrip lengths and yardage for up to 3 borders, butted or mitered.
- Fat Quarter CalculatorHow many squares or rectangles fit in a fat quarter, and how many to buy.
- Quilt Size ChartStandard quilt sizes from crib to California king, with a mattress + drop calculator.
Block units & cut sizes
Cut sizes for the units most blocks are built from.
- Half-Square Triangle CalculatorCut sizes for 2, 4 and 8 at a time HSTs, and how many squares to cut.
- Quarter-Square Triangle CalculatorHourglass unit cut sizes, exact or oversize and trim, with fabric needed.
- Flying Geese CalculatorNo-waste and stitch-and-flip cut sizes for any finished goose.
- Square in a Square CalculatorCenter and corner cut sizes for any block, traditional or stitch and flip.
- Setting Triangle CalculatorSide and corner triangles for on-point quilts, plus the finished quilt size.
Guides
Longer walk-throughs with worked examples.