Free straight-grain binding calculator
Turn the quilt perimeter into strips you can cut.
Calculate total binding length, number of width-of-fabric strips and yardage for straight-grain binding.
Scope: This calculator is for straight-grain strips joined end to end. Curved edges generally require bias binding and a different fabric calculation.
Cut plan
—yards to buy
—WOF strips
—binding length
Save this answer with the backing plan.
Linked project math and a printable shopping list are the planned paid layer.
Preview project saving →Transparent defaults
Perimeter + finishing margin.
The calculator adds all four quilt sides, adds the finishing allowance, divides by usable fabric width and rounds the strip count up. Yardage is strips × strip width, rounded up to the next quarter yard.
The default 20-inch margin follows a common conservative workflow; adjust it to match your method and pattern. See the binding width chart before choosing strip width.