Free Quilt Calculator

Eight essential calculators — fabric, binding, backing, borders & more

Conversion

Convert any fabric measurement into all common units at once.

Fabric width conversion

Convert yardage between two different fabric widths, preserving the same total area.

All calculations show the exact fabric needed based on your inputs — they do not include extra for cutting errors. Consider adding 5–10% to any yardage figure. Standard quilting cotton WOF is 44".

Dedicated Calculator Pages

Each calculator has its own page with detailed instructions, formulas, and FAQs.

Backing Calculator
Yardage for pieced backings, plus panel count and batting size.
Binding Calculator
Strip count and yardage for double-fold binding.
Border Calculator
Yardage for up to 3 borders with cumulative size tracking.
Strips Calculator
Convert between strip count and yardage — ideal for jelly rolls.
Sashing Calculator
Sashing yardage with optional cornerstones.
Shapes & HST Calculator
Cut sizes for squares, HSTs, QSTs, and flying geese.
Yardage Calculator
Fabric for any number of rectangular pieces.
Unit Converter
Convert between yards, inches, centimeters, and meters.

Standard Quilt Sizes

TypeInchesCentimeters
Baby / Crib36 × 52"91 × 132 cm
Lap / Throw50 × 65"127 × 165 cm
Twin60 × 80"152 × 203 cm
Full / Double78 × 87"198 × 221 cm
Queen90 × 108"229 × 274 cm
King108 × 108"274 × 274 cm
View full quilt size chart with California King, drop guidance & more →

Frequently Asked Questions

How much fabric do I need for a quilt?
It depends on the quilt size and design, but as a rough guide: a twin-size quilt top typically requires 4–6 yards, a queen needs 7–10 yards, and a king can need 12+ yards. Use the Yardage Calculator for an exact figure based on your piece sizes.
How do I calculate quilt backing yardage?
Add 8" (4" per side) to your quilt's width and length to get the backing dimensions, then figure out how many fabric widths (panels) you need to reach that width. Multiply panel count × backing length and convert to yards. The Backing Calculator does all of this automatically.
How much binding fabric do I need?
Calculate the quilt perimeter (2 × width + 2 × length), add 12" for corners and joins, then divide by your fabric width to get strip count. For a standard 60" × 80" quilt with 2.5" strips and 44" fabric, you typically need about ½ yard.
What is the standard width of quilting fabric?
Standard quilting cotton is 44" wide (sometimes listed as 44/45"). After removing selvages, the usable width is about 43.5". Wide-back fabrics are typically 108" wide.
How do I convert yards to inches for quilting?
Multiply yards by 36 to get inches. Common conversions: ¼ yd = 9", ⅓ yd = 12", ½ yd = 18", ⅔ yd = 24", ¾ yd = 27", 1 yd = 36".