Your loom + your yarn → a written, printable pattern
The classic round-loom set (peg counts & sizes are the common Boye / Knifty Knitter–style looms — approximate). Long loom? Pick "Custom" and enter your peg count.
Hat in the round, flat-panel scarf, or blanket panels
Defaults are good approximations for big-box looms — swatch to confirm, then override the gauge if yours differs
Add 2–4 colors and the pattern will include a row-by-row color sequence
A knitting loom fixes your stitch count before you start: the pegs are the stitches. So a written loom pattern is really three numbers — how many pegs you cast on, how many rows you knit, and where the colours change — plus the right bind-off for the shape. This tool works out all three from your loom, your yarn and your project, and writes them as steps you can follow at the loom.
The method. Finished width comes from pegs ÷ stitches per inch. Row count comes from finished length × rows per inch. Default gauges assume two strands of worsted held together at about 2 stitches per inch in e-wrap, with rows running 1.5 × the stitch gauge; u-stitch is denser, so its stitch gauge is multiplied by 1.15. Override both boxes with your own swatch numbers and every count below rewrites itself.
Hats get negative ease on purpose. A hat should finish smaller than the head and stretch to fit. The tool prints the actual ease percentage and warns you when a loom is too big or too tight for the head you picked.
A 36-peg loom, two strands of worsted, e-wrap, adult medium 22" head at 8" tall — the tool’s defaults:
Ask for three colours in 4-row even stripes across those 24 rows and the generator writes the schedule out row by row — Rows 1–4 colour A, Rows 5–8 colour B, Rows 9–12 colour C, and so on — and prints it as a card you can keep beside the loom.
For circumference by peg count across every common loom, see the loom peg chart; to size a hat to a specific head first, use the round loom hat size calculator or the hat size calculator.
What each classic loom makes (approximate)
| Loom | Pegs | Diameter | Best For |
|---|---|---|---|
| Small | 24 | ~5.5" | Preemie & newborn hats |
| Medium | 31 | ~7.5" | Baby & toddler hats |
| Large | 36 | ~9.5" | Child to adult hats |
| Extra Large | 41 | ~11.5" | Large adult & slouchy hats |
With the classic four-loom round set: 24 pegs makes preemie and newborn hats, 31 pegs baby to toddler hats, 36 pegs child to adult hats, and 41 pegs large adult or slouchy hats. All four also knit flat panels for scarves and blankets if you work back and forth instead of in the round.
A 36-peg round loom for most adults, and a 41-peg loom for a large head or a slouchy fit. At the usual loom gauge of 2 sts/inch with two strands of worsted, 36 pegs knits about 18" around, which stretches comfortably over a 22" head at roughly 18% negative ease. If your gauge is finer than 2 sts/inch, go up a loom size.
Width × gauge. At ~2 sts/inch (2 strands worsted, e-wrap), a 7" scarf needs ~14 pegs worked flat.
E-wrap: stretchy, fast, the loom default. U-stitch: flatter and denser (~10–15% more sts/inch) — the generator adjusts the math automatically.
Gather bind-off: cut a ~24" tail, thread through every loop, lift off the pegs, cinch tight, knot inside. It's built into every hat pattern this tool writes.