https://sldeskins.files.wordpress.com/2020/01/kippah.pdf

Plain Kippah pattern with just the right amount of arching.

Size is determine by needle size and number of rows.

Crochet
Finished size is determined by needle size
10.5” diameter – J (6 mm) worsted
7.75” diameter – G (4.25 mm) dk weight
5.75” diameter – 7 steel hook (1.65 mm) #20 thread
General:
At the end of each round, sl stitch into the beginning stitch of the round.
At the beginning of a round, ch1 counts as a single crochet (sc)
At the beginning of a round, ch 2 counts as a double crochet (dc)
(Multiples of 8)
Rnd 0: Magic circle or chain 5 slip in first chain to make a circle.
Rnd 1: 8 sc in loop (8 sc)
Rnd 2: sc-inc in each sc (16 sc)
Rnd 3: sc-inc, 1 sc around (24 sc)
Rnd 4: dc-inc, 2 dc around (32 dc)
Rnd 5: sc-inc, 3 sc (40 sc)
Rnd 6: dc-inc, 4 dc (48 dc)
Rnd 7: dc-inc, 5 dc (56 dc)
Rnd 8: dc-inc, 6 dc (64 dc)
Rnd 9: dc-inc, 7 dc (72 dc)
Rnd 10: dc-inc, 8 dc (80 dc)
Rnd 11: dc-inc, 9 dc (88 dc)
Rnd 12: dc-inc, 10 dc (96 dc)
Rnd 13: dc-inc, 11 dc (104 dc)

Note: The dc row can be replaced with 2 sc rows: the first row has the increase; the second is sc around.