Yardage Calculator
Know exactly how much fabric to buy before you're standing in the shop guessing.
Custom Quilt Design
Live math & fabric breakdown react dynamically to your selected layout.
Fabric Shopping List
Quilt: Ohio Star quilt
Size: 70" × 90" · 180 blocks
Printed: August 17, 2026
Background
3 yd
Star Points
2 yd
Center Hub
0.5 yd
Backing Fabric
5.5 yd
Wider than one bolt — pieced from 2 lengthwise panels sewn together.
Binding Fabric
0.75 yd
9 strips, 2.5" wide
Batting Cut Size
78" × 98"
4" overhang per side
Thread & Needles
1–2 Spools 50wt
Size 80/12 or 90/14 Needles
Yardage & WOF Strip Math
Block Fabric Area Math: Converts geometric patch fractions of finished blocks into total square inches, applying a 15% safety buffer for seam loss and trimming.
WOF Strip Conversion: $\text{Strips} = \lceil \frac{\text{Required Sq Inches}}{\text{Usable WOF} \times \text{Strip Width}} \rceil$. Usable WOF assumes 40" per bolt strip after trimming 1" selvages from both edges.
Quarter-Yard Purchasing Rounding: All final yardage amounts round up to the nearest 1/4 yard ($0.25$ yd) to match standard quilt shop cuts.
Why & When to Use This Tool
• Complete Project Shopping List: Calculate exact yardage requirements for blocks, sashing, borders, backing, binding, and batting in one unified list.
• Prevent Mid-Project Fabric Shortages: Quilt fabric dye lots vary between bolts. Calculating complete yardage up front ensures consistent fabric color.
• Pattern Storage Integration: Automatically syncs with designs created in the Pattern Maker to calculate exact custom pattern yardage.
Related Quilting Terms
View Full DictionaryThe amount of fabric, measured in yards, needed for a project.
The measurement across a bolt of fabric from selvage to selvage, typically about 42–44".
The large roll a fabric is sold on at the store.
The tightly woven, non-fraying edge along both lengths of a fabric bolt, usually trimmed away before cutting.
The three layers of a quilt — top, batting, and backing — layered together before quilting.