Quilt Binding Calculator
Enter quilt measurements and binding preferences to plan how many strips to cut and how much fabric to buy before finishing your quilt.
Binding length
330.0"
Perimeter 320.0" + extra
Strips to cut
8
Cut 2.5" x WOF strips
Fabric yardage
20.0" (~0.56 yd)
Cut strips along the width of fabric.
How to Use This Calculator
Measure the finished quilt
Use the trimmed quilt size after quilting to ensure accurate perimeter measurements.
Set binding preferences
Specify strip width, fabric width, and extra length for joining strips and finishing ends.
Review strip count and yardage
Cut the suggested number of strips and piece them together to reach the total binding length.
Formula
Perimeter = 2 x (Width + Height)
Total binding length = Perimeter + Extra allowance
Strip count = ceil(Total binding length / Width of fabric)
Yardage = Strip count x Strip width / 36
Example: 70 x 90 inch quilt, 2.5 inch strips, 42 inch fabric width, 10 inch extra → total length 330 inches, strips needed 8, yardage about 0.56 yards.
Full Description
Finishing a quilt with tidy binding requires accurate strip counts and a little extra length for joining tails. This calculator takes the guesswork out by converting quilt measurements into binding yardage instantly.
Decide between straight grain and bias binding, adjust the strip width, and add the extra allowance that suits your joining method. The calculator outputs the total binding length, strip count, and yardage so you can cut fabric once and sew with confidence.
Keep the tool handy when writing patterns, preparing kits, or visiting the quilt shop to purchase binding fabric.
Frequently Asked Questions
When should I choose bias binding?
Use bias binding for curved edges or scallops. Straight grain works well for most rectangular quilts.
How much extra length should I add?
Ten inches covers diagonal joins and finishing tails. Increase to 12 to 15 inches if you prefer more wiggle room or cut on the bias.
What if my fabric width differs from 42 inches?
Change the fabric width field to match your material. The strip count recalculates automatically.
Can I cut binding from scraps?
Yes. Use the total binding length to plan how many scrap strips to piece together.
Do I need to adjust for double-fold vs. single-fold?
Double-fold binding typically uses 2.25 to 2.5 inch strips. Single-fold can be narrower; adjust the strip width field accordingly.