Free calculators

Quilting calculators, on the house

The same math that powers the app, free in your browser. No sign-up, and it works on your phone at the fabric store. For your stash, projects, and the full block library, get the app.

Quilt Backing

Yardage with the fewest seams.

Quilt Binding

Straight-grain strips and total yardage.

Half-Square Triangle

Cut size for 2, 4, or 8 at a time.

Fabric Yardage

How much fabric for a set of pieces.

Quilt Size

Block grid to finished top size.