π§Ά Knitting Yarn Calculator
Enter your project dimensions and gauge (stitches/rows) to estimate total stitches, yarn length, weight and skeins needed. Supports cm/inches, real-time client-side calculation.
Tip: the "meterage" on a yarn label (e.g. 200 m / 100 g) is the length per 100 g. Waste defaults to 10% for color changes, joins and margin.
π Result
1. Stitches across = width(cm) Γ· 10 Γ stitches per 10 cm; rows down = height(cm) Γ· 10 Γ rows per 10 cm.
2. Yarn per stitch β
2.5 Γ (stitch width + stitch height), where stitch width = 10 Γ· stitches per 10 cm, stitch height = 10 Γ· rows per 10 cm (cm).3. Total length = total stitches Γ yarn per stitch Γ (1 + waste%); weight = length(m) Γ 100 Γ· (m/100g).
𧡠Common yarn weight reference
| Weight | Length per 100g (m) | Typical use |
|---|---|---|
| Lace | 500β800 | Shawls, fine lace |
| Fingering | 350β450 | Socks, light garments |
| Sport | 250β350 | Kids wear, light sweaters |
| DK | 200β280 | Sweaters, accessories |
| Worsted | 160β220 | General sweaters, blankets |
| Aran | 120β170 | Chunky sweaters |
| Chunky | 80β130 | Scarves, warm fabric |
β FAQ
How do I measure my gauge?
Knit a 10Γ10 cm swatch (stockinette) with your chosen yarn and count the horizontal stitches and vertical rows. That gives your stitches/rows per 10 cm β the most reliable input, better than guessing.
Is "yarn per stitch β 2.5Γ(stitch width + stitch height)" accurate?
This is a widely used industry estimate that accounts for the loop path length. Actual yarn used varies with stitch type (stockinette, brioche, etc.), tension and fiber, usually within Β±10%. Add the waste margin to be safe.
Should I buy an extra skein?
Yes β keep at least 5%β10% margin, especially for colorwork or large projects. This tool has an adjustable waste percentage; raise it as needed.
How are inches handled for gauge?
Select "per 4 inch" and the tool converts to per-10 cm using 4 inch β 10.16 cm, working seamlessly with cm dimensions.