Quilt Backing Calculator

Add extra around the quilt, then convert to yards. Wider quilts may need a pieced back.

Display only — amounts are not converted between currencies.

Quilt size
in
in
in
$
in

Backing yards

4.89

Fabric cost
$61.12

Cost breakdown

Yards4.89
Cost$61.12

Backing yards

4.89

Backing uses the same extra-and-panels approach as a full-width piece of fabric behind the quilt.

How this calculator works

How we calculate this

  1. Same panel math as the quilt fabric calculator, intended for a single backing fabric.

Example

Example: 60×80 in quilt on 42 in backing

Extra for basting plus a seam if two lengths are joined. Yardage is more than length/36.

  • Wide-back fabric (108 in) can drop you back to a single length.

How much should I charge?

Backing is a cost line. Include it in a finished-quilt price with labor.

Pricing tips

  • Change fabric width to 108 to model wide back.
  • Add extra if the longarm requires more than 8 inches.

Common mistakes

  • Buying exactly the quilt length with no extra.
  • Forgetting the joining seam allowance on pieced backs.

FAQ

How much backing fabric do I need?

Add extra inches to length and width, then convert to yards using fabric width. Pieced backs need more than a single length.

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