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Crochet Yarn Calculator: How Much Yarn Do I Need?
Work out how much yarn a crochet blanket, scarf or hat needs, in yards, metres and skeins, for any yarn weight and stitch.
How much yarn for a crochet blanket?
In double crochet, with 10% spare left out. Single crochet takes about a quarter more; granny squares a little less.
| Blanket | Size | DK (3) | Worsted (4) | Chunky (5) |
|---|---|---|---|---|
| Lovey | 12 × 12 in | 150 yd | 115 yd | 75 yd |
| Baby | 30 × 36 in | 1,123 yd | 864 yd | 562 yd |
| Toddler / crib | 42 × 52 in | 2,271 yd | 1,747 yd | 1,136 yd |
| Throw | 50 × 60 in | 3,120 yd | 2,400 yd | 1,560 yd |
| Twin | 66 × 90 in | 6,178 yd | 4,752 yd | 3,089 yd |
| Full / double | 80 × 90 in | 7,488 yd | 5,760 yd | 3,744 yd |
| Queen | 90 × 100 in | 9,360 yd | 7,200 yd | 4,680 yd |
| King | 108 × 100 in | 11,232 yd | 8,640 yd | 5,616 yd |
How the estimate works
The calculator works from the finished area. Worsted yarn in double crochet uses roughly 0.8 yards for every square inch; tighter stitches like single crochet use more, open stitches like shells and granny squares use less. Lighter yarn needs more yards to cover the same area, chunky yarn fewer.
Your own tension matters most. Crochet a small square, weigh or measure the yarn it took, and you’ll know whether you work tighter or looser than average.
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