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Crochet half circle: a flat half-moon in double-crochet rows

Work 6 double crochets in a magic ring without joining, then turn and add 6 stitches every row: 12, 18, 24, 30 and 36. The row ends form the straight edge.

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Turned rows from a ringUS termsHook: 5 mm (US H-8), or the size that gives you gaugeSize from your washed swatchDK or worsted yarn

Know these stitches: magic ring, double crochet

The finished half circle.

Materials and yarn planning

Yarns we’ve reviewed that suit it: Bernat Softee Cotton yarn, Knit Picks Dishie Cone yarn, Lion Brand 24/7 Cotton DK yarn. For the hook, choose by size and handle.

To buy for a set, make one complete motif first and weigh it: multiply by the number you need, add a little for joins and finishing, and divide by the ball weight on the label. A rectangular swatch cannot predict yarn for this shape. With a total length instead, the yarn-length-to-balls calculator gives the ball count.

Finished size and gauge

The straight edge is the half circle's full width: two row heights for every row. With R double-crochet rows per 10 cm, 6 rows make it about 12 × 10 ÷ R cm long and half that tall. Example: at 8 rows per 10 cm, about 15 cm by 7.5 cm. These are calculations from the counts, not a measured sample.

The gauge calculator compares your swatch with the pattern. A stitch name you do not know is in the abbreviation chart; a UK pattern’s names are in the US/UK term reference.

The pattern

Count rows for this pattern

Start from a ring

  1. Row 1: make a magic ring. Chain 3 (it counts as a double crochet) and work 5 double crochets in the ring: 6 stitches. Pull the tail to close the ring. Do not join.
  2. Row 2: chain 3 and turn; it counts as a double crochet. Work 1 double crochet in the first stitch, then 2 double crochets in each stitch across, the last 2 in the top of the chain 3: 12 stitches.

Add 6 stitches a row

  1. Row 3: chain 3 and turn. 2 double crochets in the next stitch, then [1 double crochet in the next stitch, 2 double crochets in the next stitch] 5 times, the last 2 in the top of the chain 3: 18 stitches.
  2. Row 4: chain 3 and turn. 2 double crochets in the next stitch, 1 double crochet in the next stitch, then [1 double crochet in the next stitch, 2 double crochets in the next stitch, 1 double crochet in the next stitch] 5 times: 24 stitches.
  3. Row 5: chain 3 and turn. 1 double crochet in each of the next 2 stitches, 2 double crochets in the next stitch, then [1 double crochet in each of the next 3 stitches, 2 double crochets in the next stitch] 5 times: 30 stitches.
  4. Row 6: chain 3 and turn. 1 double crochet in the next stitch, 2 double crochets in the next stitch, 1 double crochet in each of the next 2 stitches, then [1 double crochet in each of the next 2 stitches, 2 double crochets in the next stitch, 1 double crochet in each of the next 2 stitches] 5 times: 36 stitches.
  5. For more rows, add one plain stitch to every repeat and keep 6 increases a row: Row 7 is chain 3, 1 double crochet in each of the next 4 stitches, 2 in the next, then [1 double crochet in each of the next 5, 2 in the next] 5 times: 42 stitches. Fasten off after the last row.

Check the work

Six more stitches every row: 6, 12, 18, 24, 30, 36. The last stitch of every row goes into the top of the chain 3, and the straight edge lies flat along a ruler.

Stitches by row6 · 12 · 18 · 24 · 30 · 36
  • If the straight edge leans or the shape narrows, the last stitch of a row missed the top of the chain 3.
  • If the half circle ruffles, a row has more than 6 increases; if it curls into a cone, it has fewer.

Updated . Stitch counts checked row by row; we haven’t crocheted a sample of this one yet. How the patterns are checked. Keep your yarn label, hook and swatch on the printable project worksheet.

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