Measurements (half hat):
Length - 10 inches; Height - 8inches

This hat with my suggested yearn is for small adult head. If you choose chunky yarn and knit with 8mm knitting needles hat will be bigger.

If 8 inches height is not enough for you knit not 6 first rows but 8 or 10.

Gauge: 10st x10 rows = 2.5inches x 2.5inches.