A yardage calculator and a yarn weight chart. No sign-up, no app needed.
Enter what the pattern needs and what you own. We add a safety margin and tell you how many skeins to buy.
Standard yarn weight categories with typical gauge and needle sizes. Always swatch, because your hands decide the final gauge.
| Number | Category | Also called | Stitches per 4 in (10 cm) | Needle size |
|---|---|---|---|---|
| 0 | Lace | Fingering, 10-count thread | 33 to 40 | 1.5 to 2.25 mm (US 000 to 1) |
| 1 | Super fine | Sock, fingering, baby | 27 to 32 | 2.25 to 3.25 mm (US 1 to 3) |
| 2 | Fine | Sport, baby | 23 to 26 | 3.25 to 3.75 mm (US 3 to 5) |
| 3 | Light | DK, light worsted | 21 to 24 | 3.75 to 4.5 mm (US 5 to 7) |
| 4 | Medium | Worsted, afghan, aran | 16 to 20 | 4.5 to 5.5 mm (US 7 to 9) |
| 5 | Bulky | Chunky, craft, rug | 12 to 15 | 5.5 to 8 mm (US 9 to 11) |
| 6 | Super bulky | Roving | 7 to 11 | 8 to 12.75 mm (US 11 to 17) |
| 7 | Jumbo | Jumbo, roving | 6 and fewer | 12.75 mm and larger (US 17 and larger) |
Weight categories follow the Craft Yarn Council standards. Gauge is for stockinette stitch.
YarnWiz scans the yarn label, keeps your yardage totals, and checks every pattern in your library against what you own. These free tools give you a taste of that.
YarnWiz is live now on the App Store and Google Play. Scan your first skein in minutes.
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