Quilting calculator
Quilt Binding Calculator
Find the binding length, number of width-of-fabric strips, and purchase yardage.
Free · No account · Editable assumptions
Your result
Recommended answer Calculated resultA value derived from the same validated inputs, assumptions, and calculation contract shown on this page.Learn more
Copies a concise text summary of the current result when browser clipboard access is available.Opens the browser print flow using the dedicated readable plan layout.Transfers the compatible calculated cut requirement into the locally saved project for joint planning.
How this calculator works
Assumptions
This is for straight-grain or cross-grain double-fold binding, not bias binding. Strips are cut across the entered usable fabric width and joined end to end. The editable joining allowance covers joins, corners, and finishing overlap.
Methodology
Quilt perimeter is twice the width plus twice the length. The joining allowance is added, the result is divided by usable width, and the strip count is rounded up. Strip count multiplied by cut strip width gives the fabric length before safety and upward purchase rounding.
Worked example
A 60 × 80 inch quilt has a 280-inch perimeter. Add 12 inches, then divide 292 by 40 usable inches: eight whole strips. At 2½ inches wide, those strips consume 20 inches before any safety allowance or shop rounding.
Limitations
This focused calculator covers the construction method and rectangular measurements described above. It does not infer a complete quilt pattern or replace method-specific instructions.
Common question
Can I change the defaults? Yes. The visible defaults are planning conveniences; use the measurements and assumptions that match your fabric, method, and quilting setup.
Keep planning
Plan more than one piece
Combine all the rectangles for each fabric into a shopping list, cutting list, and visual layout.
Open the fabric cutting plannerTransfers the compatible calculated cut requirement into the locally saved project for joint planning.