0 to 3 months
Hat circumference 11.5" - 13"
Hat height: 4.5” to 5"
3 to 6 months
Hat circumference: 14" - 17 "
Hat height : 5.5” - 6"
6 to 12 months
Hat circumference: 16" - 19 "
Hat height: 6.5"
12 months to 3T
Hat Circumference: 18" to 20"
Hat height : 7"
3 to 10 years
Hat Circumference: 19" – 20.5"
Hat height: 7.5"
Pre-teen to teens
Hat Circumference: 20.5" - 22"
Hat height: 8” - 9"
Women's
Hat Circumference: 21.5" - 22.5"
Hat height: 10"
Men's
Hat Circumference: 23" - 24"
Hat height: 10" - 10.5"
Measure the size of the head. Wrap a measuring tape around the head (forehead, back of head, above ears) to find out the circumference of the head. Remember the hat will stretch., so make it an inch or two smaller. A hat that has been made using a double crochet will stretch more than one made using a single crochet.
For example, you want to crochet a hat of 12.5-inch circumference. Divide this measurement by 3.14 (value of pi). So, 12.5/3.14 is approximately 3.98, which can be rounded off to 4. Stop expanding when you have reached a diameter of 4 inches.
- Ch 2.
- 8 dc into the 2nd ch from hook. Join with slip stitch to beginning of round.
- 2 dc into each dc (16 st)
- Increase in every alternate stitch, i.e., 2 dc + 1 dc + 2 dc + 1 dc + ... (24 st)
- 2 dc + 1 dc + 1 dc + 2 dc + 1 dc + 1 dc + 2 dc ... (32 st)
- 2 dc + 1 dc + 1 dc + 1 dc + 2 dc + 1 dc + 1 dc + 1 dc + 2 dc ... (40 st)
Keep increasing in this manner until desired size has been reached. As mentioned earlier the hat measures 12.5 inches in circumference, so stop expanding when 4 inches diameter is reached. From the next step onwards start working even, i.e., 1 dc into each dc. Once you have stopped expanding and started working even, the edges of your circle will start to bend. Continue working even until desired length has been reached. Any stretch can use any stitch: sc, hdc or dc.