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Free Tools
Free Quilting Calculators
Every calculation a quilter needs — binding, backing, batting, HSTs, flying geese, yardage, fat quarters, sashing, and precuts.
Finishing
Binding Calculator
How many yards of binding fabric for any quilt size. Includes the formula and a reference table for all standard sizes.
Backing Calculator
How much backing fabric for 44"-wide and 108"-wide fabric. Includes piecing instructions for wide quilts.
Diagonal Pieced Backing Calculator
One diagonal seam instead of two panels — saves up to 1-1/2 yards of backing on baby, crib, and small throw quilts.
Batting Calculator
What size batting for any quilt size. Packaged batting size guide and by-the-yard yardage calculator.
Mitered Border Calculator
How much fabric for a mitered (45°-corner) border. Strip lengths and yardage by quilt size, plus the formula for any width.
Piecing
Half Square Triangle Calculator
Cut sizes for every finished HST size. Two-at-a-time and four-at-a-time methods with yield per fat quarter.
Flying Geese Calculator
Cutting dimensions for any finished flying geese unit. Standard method and no-waste four-at-a-time method.
Square in a Square Calculator
Cut sizes for the center square and corner triangles of any square-in-a-square (economy) unit, with the trim-to-size method.
Half-Rectangle Triangle (HRT) Calculator
Cutting dimensions for HRT units at any finished size, using the no-special-ruler stitch-and-trim method.
Layout
Sashing Calculator
How much fabric for sashing strips and cornerstones. Reference table for common grid sizes and sashing widths.
Setting Triangle Calculator
Cut sizes for side and corner setting triangles, plus how many you need for any on-point (diagonal set) quilt.
Block Calculator
How many quilt blocks for any combination of quilt size and block size, with and without sashing.
Fabric
Precut Calculator
Fat quarters, jelly rolls, charm packs, and layer cakes — yield, dimensions, and how many for any quilt size.
Strip Calculator
How many WOF strips your yardage yields and how much fabric to buy for the strips you need — jelly roll equivalents included.
Piece Count Calculator
How many squares of any size you can cut from a yard, half yard, or fat quarter, plus the formula for rectangles.
Fabric Width Conversion
Convert yardage between fabric widths — vintage 36", standard 44", decor 54"/60", and 108" wideback.
Yardage Calculator
Total fabric estimate by quilt size — top fabric, backing, binding, and total in one table.
Fat Quarter Calculator
How many fat quarters for every quilt size, from minimal to very scrappy, plus precut equivalents.
Detailed Fabric Calculator
Full cut list with yardage by fabric type for any block size, sashing width, and border configuration.
Technique
Quilt-As-You-Go (QAYG) Calculator
Per-block batting and backing size, how many blocks you need, and how to join them — no longarm required.
Longarm Quilting Cost Calculator
Estimate what a longarm quilter will charge to finish your top — edge-to-edge and custom quilting price ranges.
T-Shirt Quilt Size Guide
How many shirts you need by quilt size, how to stabilize stretchy tee fabric, and typical cost to have one made.
Reference
Frequently Asked Questions
How much fabric do I need for a quilt?
It depends on the quilt size and pattern complexity. As a rule of thumb: a throw needs about 4–5 yards for the top, a queen about 8–9 yards, and a king about 10–12 yards — plus backing, batting, and roughly ¾ to 1 yard for binding. The yardage calculator gives per-size estimates for top, backing, and binding together.
How do I calculate quilt binding?
Add up the quilt's perimeter (2 × width + 2 × height), add about 10 inches for corners and joining, then divide by 40 (the usable width of a strip cut from standard fabric) to get the number of strips. Multiply strips by your binding width (usually 2½ inches) to get the fabric needed. The binding calculator does this for every standard size.
What size should my quilt backing be?
Backing should be 6–8 inches larger than the quilt top in both directions (3–4 inches of overhang per side) if it will be longarm quilted, or 4 inches larger for quilting on a domestic machine. For quilts wider than about 38 inches you'll need to piece standard 44-inch fabric or use 108-inch wide-back fabric.
Are these quilting calculators really free?
Yes — every calculator on NiftyFifty is free, with no sign-up required. They run entirely in your browser.
Where the math ends up — Teresa's Classic Colonial quiltShop Fabric
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