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Tool

Yarn held together calculator

Pick the strands you want to hold together, two fingering, a worsted with a lace, a mohair with a DK, and see what weight the pair knits like, the needle to start on, and the yarn we have in stock for each strand.

A coral strand and a cream strand wound together into one ball, on linen.

Held together they knit about like a dk, with a halo: around 23 stitches per 4". Start your swatch on US 5–7 and change needles until the fabric is right.

Each strand runs the whole length of the project, so you need the full yardage of each one.

A starting point, not a gauge: two strands never fill each other's gaps the same way twice, so swatch the pair before you cast on.

How the sum works

A stitch is as wide as the yarn is thick, and thickness grows with the square root of how much fiber is in the strand. So two strands of one yarn do not halve the gauge: they knit at about 0.7 of it, roughly two steps up the weight scale. Two fingering strands at 28 stitches per 4" come out near 20, a light worsted. The table in the holding yarns together guide is the same sum, written out pair by pair.

Why mohair is its own choice

A kid mohair and silk lace is held for its halo. It adds warmth and haze and very little thickness, so a DK with a mohair strand knits like a worsted, not like an aran. A plain lace strand adds more. The mohair guide covers which halo yarn does what.

How much to buy

Each strand runs the whole length of the project, so a 1,200 yard sweater held double takes 1,200 yards of each yarn. Type the pattern's yardage and the skein counts beside the calculator are worked out for each yarn from the yards in its own skein. A yarn held with itself takes twice the count shown.

Swatch the pair

The answer is a starting needle, not a gauge. Knit a swatch with both strands, wash it, and measure it with the gauge calculator before casting on.

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