Crochet Yarn Calculator
How much yarn do you need? Enter your project size and yarn, and get the yards, metres and number of skeins to buy.
Yarn needed for crochet blankets
Approximate yards for a blanket in double crochet, without the 10% extra. Single crochet uses about 20% more; puff and bobble stitches about 50% more.
| Size | Fingering (1) | Sport (2) | DK (3) | Worsted (4) | Bulky (5) | Super bulky (6) |
|---|---|---|---|---|---|---|
| Lovey 12 × 12 in | 190 | 140 | 120 | 90 | 60 | 40 |
| Stroller / baby 30 × 35 in | 1,360 | 1,050 | 840 | 630 | 440 | 290 |
| Receiving 40 × 40 in | 2,080 | 1,600 | 1,280 | 960 | 670 | 450 |
| Lapghan 36 × 48 in | 2,250 | 1,730 | 1,380 | 1,040 | 730 | 480 |
| Throw 50 × 60 in | 3,900 | 3,000 | 2,400 | 1,800 | 1,260 | 840 |
| Twin 66 × 90 in | 7,720 | 5,940 | 4,750 | 3,560 | 2,490 | 1,660 |
| Full 80 × 90 in | 9,360 | 7,200 | 5,760 | 4,320 | 3,020 | 2,020 |
| Queen 90 × 100 in | 11,700 | 9,000 | 7,200 | 5,400 | 3,780 | 2,520 |
| King 108 × 100 in | 14,040 | 10,800 | 8,640 | 6,480 | 4,540 | 3,020 |
How this calculator works
Quick estimate multiplies the area of your project by a typical amount of yarn per square inch for your yarn weight, then adjusts for the stitch. Dense stitches like single crochet use more yarn than taller, airier stitches like double or treble crochet. Your hook size and tension also matter, so the result is a range rather than an exact number.
From my swatch is the most accurate method. Your swatch already captures your yarn, hook and tension, so the calculator simply scales it up to the size of your project.
Tips so you don't run out
- Buy all skeins from the same dye lot; colours can differ between lots.
- Borders, fringe and joining squares use extra yarn. Add 10–15% for a wide border.
- If you crochet tightly, you'll use more yarn than average; if loosely, less.
Frequently asked questions
How much yarn do I need for a crochet throw blanket?
A 50 × 60 inch throw in double crochet takes roughly 1,800 yards of worsted (#4) yarn, about 1,260 yards of bulky (#5) or about 840 yards of super bulky (#6). Single crochet and textured stitches use more.
Does single crochet use more yarn than double crochet?
Yes. For the same area, single crochet usually uses about 20% more yarn than double crochet because the fabric is denser. Puff, bobble and other textured stitches can use 50% more.
How do I calculate yarn from a swatch?
Crochet a swatch in your stitch, measure it, and note how much yarn it used (weigh it, or measure the yarn). Divide your project area by the swatch area and multiply by the yarn the swatch used. The "From my swatch" tab does this for you.
Should I buy extra yarn?
Buying about 10% extra is a good habit, and buy all skeins from the same dye lot so the colour matches.