Which loom, how many pegs, how many rows — instantly
Tap a size to auto-fill, or enter an exact measurement below
Loom knitting gauges vary — these defaults are good starting approximations. Swatch to confirm!
Pick a size or enter a head measurement to see your plan
The classic 4-loom set (peg counts & diameters are the common Boye / Knifty Knitter–style sizes — approximate)
| Loom | Pegs | Diameter | Typical Hat Size |
|---|---|---|---|
| Small | 24 | ~5.5" | Preemie & newborn |
| Medium | 31 | ~7.5" | Baby 6–12 mo & toddler |
| Large | 36 | ~9.5" | Child, teen & most adults |
| Extra Large | 41 | ~11.5" | Large adult & slouchy styles |
The questions every loom knitter asks
For a fitted adult hat (21–23" head) with 2 strands of worsted in e-wrap, use the 36-peg (~9.5") loom. Large adult heads or slouchy styles: 41-peg (~11.5").
Yes — aim for a finished circumference about 8–10% smaller than the head so the hat stretches to fit snugly. This calculator builds the ease in for you.
Knit to the target hat height: ~5" newborn, ~6.5" toddler, 8–8.5" adult, then gather. Folded brim? Add ~2" of extra rows.
E-wrap is stretchier and faster — the default for hats. U-stitch is denser and runs ~10–15% more stitches per inch, so it knits up slightly smaller on the same loom.
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Hat sized!
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