How much yarn for a full size blanket
A full size blanket (80 × 90 in / 203 × 229 cm) takes about 6,800 yd of worsted (weight 4) yarn in single crochet, likely between 5,780 yd and 8,160 yd. In double crochet it is about 5,440 yd, and knit in stockinette about 5,290 yd.
With 200-yard skeins, buy 41 skeins for single crochet in worsted (enough for the high end). Thicker yarn needs fewer yards; thinner yarn more.
Yarn for a full size blanket by yarn weight (yards)
Yarn for a full size blanket by yarn weight (yards)| Weight | Single crochet | Double crochet | Knit |
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| 1 Super Fine | 14,260 yd | 11,400 yd | 11,090 yd |
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| 2 Fine | 9,720 yd | 7,780 yd | 7,560 yd |
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| 3 Light | 8,420 yd | 6,740 yd | 6,550 yd |
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| 4 Medium | 6,800 yd | 5,440 yd | 5,290 yd |
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| 5 Bulky | 4,860 yd | 3,890 yd | 3,780 yd |
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| 6 Super Bulky | 3,560 yd | 2,850 yd | 2,770 yd |
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| 7 Jumbo | 1,620 yd | 1,300 yd | 1,260 yd |
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Yarn for a full size blanket by yarn weight (meters)
Yarn for a full size blanket by yarn weight (meters)| Weight | Single crochet | Double crochet | Knit |
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| 1 Super Fine | 13,040 m | 10,430 m | 10,140 m |
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| 2 Fine | 8,890 m | 7,110 m | 6,910 m |
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| 3 Light | 7,700 m | 6,160 m | 5,990 m |
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| 4 Medium | 6,220 m | 4,980 m | 4,840 m |
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| 5 Bulky | 4,440 m | 3,560 m | 3,460 m |
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| 6 Super Bulky | 3,260 m | 2,610 m | 2,530 m |
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| 7 Jumbo | 1,480 m | 1,190 m | 1,150 m |
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Getting an exact number
Work a swatch in your yarn and stitch, weigh it, and scale up: project area ÷ swatch area × swatch weight gives the grams, and the skein label turns grams into yards. The yarn calculator does this for you.
Buy all the skeins at once from the same dye lot, and plan about 10 % extra for edging, seams and joining.
Estimates from the StitchTick yarn calculator: fabric area × typical yards per square inch for each yarn weight and stitch (Craft Yarn Council wraps per inch). Stitch pattern, hook and tension can change them by 15–20 % either way.
How much yarn for other projects
Frequently asked questions
How many skeins for a full size blanket?
In worsted single crochet, plan for up to 8,160 yd: 41 skeins of 200 yards.
Does crochet use more yarn than knitting?
Usually yes: single crochet uses about 29 % more yarn than stockinette for the same area. Taller stitches like double crochet use less than single crochet.
How do I work out yarn from a swatch?
Weigh your swatch, divide the project area by the swatch area, and multiply by the swatch weight. Then turn grams into yards with the skein label (for example 100 g = 200 yd).