Free calculators for knitting, crochet and quilting
Work out how much yarn or fabric to buy before you start. No sign-up, works in inches or centimetres, and every number comes with the assumptions behind it.
How much yarn for a blanket
Yards and skeins for any blanket size, knit or crochet, in every yarn weight. Built from 2,681 real blanket patterns.
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Yarn weight chart & identifier
Find the weight of any yarn from its label, plus needle and hook sizes and real yards per 100 g from 4,428 popular yarns.
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Quilt backing calculator
Backing yardage for standard or 108" wide fabric, with the number of panels and the seam layout that wastes least.
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Quilt binding calculator
How many strips to cut and how much fabric to buy for the binding, for any quilt size and strip width.
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Quilt batting calculator
Minimum batting size with margin, and the smallest standard batt package that will fit your quilt.
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Quick answers
- A worsted-weight throw blanket (50 × 60 in) takes about 2,820 yards knitted, or 3,000 yards crocheted.
- A queen quilt (90 × 95 in) needs 8.25 yards of standard cotton for the backing, pieced from 3 panels.
- The same queen quilt needs 10 binding strips cut across the width of fabric; see the binding calculator for other sizes.
Where the numbers come from
The yarn estimates are not rules of thumb: they are the median yardage per square inch from 2,681 knitted and crocheted blanket patterns published on Ravelry, grouped by craft and yarn weight, with the typical range shown next to every result. Blanket and quilt sizes follow standard US bed and blanket dimensions. The quilting calculators use the usable fabric widths and margins that quilt shops and longarm quilters work with, and each calculator lists its assumptions so you can adjust them.