Quilt Backing Calculator
Calculate exactly how much backing fabric you need for your quilt. See visual diagrams for horizontal vs. vertical seams and compare fabric widths.
Quilt Dimensions
Backing should be larger than quilt top for ease of basting/quilting
Usually 2" less than stated width (remove selvages)
Quilt Backing Tips:
✂️ Cutting Tips:
- • Always remove selvages (they shrink differently)
- • Cut perpendicular to selvage for straight grain
- • Press seams open to reduce bulk
- • Use 1/2" seam allowance for backing seams
💰 Money-Saving Tips:
- • Use regular quilting cotton (cheaper than wide backing)
- • Buy from bolt ends (often discounted)
- • Piece scraps for baby quilts
- • Watch for backing fabric sales
🎨 Design Tips:
- • Use contrasting fabric for visual interest
- • Add a strip down center for decorative look
- • Piece leftover quilt top fabrics into backing
- • Make backing as pretty as the front!
📏 Measuring Tips:
- • Measure quilt top after borders are added
- • Add 4-6" to each dimension for overhang
- • More overhang needed for longarm quilting
- • Account for shrinkage if pre-washing