A single pair of adult socks needs 350–450 m of fingering-weight yarn — plan on one full 100 g skein (typically ~400 m) per pair for most adult sizes.
Socks seem small but use more yarn per square centimetre than almost any other garment because of the fine gauge and the structural density of the heel and toe. The heel turn and toe decreases are worked at a tighter effective gauge than the leg and foot tube because the stitches are manipulated more tightly, consuming extra yardage. Working two at a time (magic-loop circulars for knitting, or both socks together for crochet) is efficient and avoids second-sock syndrome, but it doesn't change the total yardage. For children's socks, 200–280 m is usually plenty. A knee-high sock can need 500–600 m depending on leg length.
Calculated with 8 yarn weights, size M, 15% reserve. Pattern: Knitting → Stockinette · Crochet → Double crochet.
| Yarn weight | Meters per 100 g | Balls needed | Total meters | Approx grams |
|---|---|---|---|---|
| Lace | 600–1200+ m / 100g | — | — | — |
| Fingering | 350–550 m / 100g | — | — | — |
| Sport | 250–350 m / 100g | — | — | — |
| DK | 200–300 m / 100g | — | — | — |
| Worsted / Aran | 150–220 m / 100g | — | — | — |
| Bulky | 80–140 m / 100g | — | — | — |
| Super Bulky | 40–80 m / 100g | — | — | — |
| Jumbo | < 40 m / 100g | — | — | — |
| Yarn weight | Meters per 100 g | Balls needed | Total meters | Approx grams |
|---|---|---|---|---|
| Lace | 600–1200+ m / 100g | — | — | — |
| Fingering | 350–550 m / 100g | — | — | — |
| Sport | 250–350 m / 100g | — | — | — |
| DK | 200–300 m / 100g | — | — | — |
| Worsted / Aran | 150–220 m / 100g | — | — | — |
| Bulky | 80–140 m / 100g | — | — | — |
| Super Bulky | 40–80 m / 100g | — | — | — |
| Jumbo | < 40 m / 100g | — | — | — |
The yardage multiplier (×) shows how much more yarn each stitch uses relative to stockinette / double crochet baseline. Sorted by yarn efficiency.
Open mesh saves yarn
Baseline—minimum yardage
Bulkier, +20%
Crossings eat +35%
Two-yarn floats
Minimum draw
Open motifs
Pieced motifs
Airier, lighter
Between sc and dc
Tightest fabric
Fabric area scales from XS to 2XL. Use this to understand why larger sizes need significantly more yarn.
| Size | Area multiplier | Fabric area (m²) |
|---|---|---|
| 34/35 | ×0.85(-15%) | 0.10 m² |
| 36/37 | ×0.92(-8%) | 0.11 m² |
| 38/39 | ×1.00(baseline) | 0.12 m² |
| 40/41 | ×1.08(+8%) | 0.13 m² |
| 42/43 | ×1.16(+16%) | 0.14 m² |
| 44/45 | ×1.25(+25%) | 0.15 m² |
They're empirical multipliers measured against stockinette (1.0). Cables and stranded colourwork eat more yarn because of the extra bulk; lace and filet use less. The numbers are averages — if your tension is unusual, drop in a real swatch in advanced mode and we'll override them.
Simple mode falls back to typical gauges for the yarn weight you picked. For wearables we still recommend a 10×10 cm swatch — once you have one, switch to advanced mode and the maths gets sharper.
The base calc is area-based. Tricky shapes (raglan, A-line, hooded) are absorbed by the 10–20% buffer; for full-body cabled sweaters or steeked cardigans we suggest pushing it to 25%.
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