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Knitting stitch guide

Long-tail cast on (CO)

A way to put the first row of stitches onto your needle.

What is long-tail cast on?

A way to put the first row of stitches onto your needle. The long-tail cast on is neat and a bit stretchy, and it is the one most patterns expect when they just say "cast on".

In a pattern you will see it written as CO in both US and UK patterns.

How to do it, step by step

  1. Leave a tail about 1 in / 2.5 cm per stitch, plus a bit. Make a slip knot on the needle.
  2. Hold the tail over your thumb and the working yarn over your index finger, both held in your palm.
  3. Take the needle up through the thumb loop.
  4. Go over and around the yarn on your index finger.
  5. Bring it back down through the thumb loop, drop the loop and snug up.

The mistake to watch for

Running out of tail near the end. If it happens, start again with a longer tail rather than adding stitches another way.

If you are left-handed

Most left-handed knitters knit the usual way, since both hands work. If you prefer, you can knit mirrored: stitches move from the right needle to the left. Swap "left" and "right" in the steps.

Practise it on a free pattern

These patterns from Crochet Counter use long-tail cast on:

Related stitches

Questions

What is the most common mistake with long-tail cast on?

Running out of tail near the end. If it happens, start again with a longer tail rather than adding stitches another way.

See all knitting stitches, or the full knitting abbreviations chart.