Chemo Cap Sizing

Here's a guide to head sizing for making chemo caps. There are lots of free patterns avaiable via the web. Try www.ravelry.com, http://www.freepatterns.com/ or www.headhuggers.org for patterns.
SIZE AROUND HEAD FRONT TO BACK EAR TO EAR
Extra Petite 20-1/2” 12” 10-1/2” to 11”
Petite 21” 12-1/2” 11” to 11-1/2”
Average 21-1/2” 12-1/2” to 13” 11-1/2” to 12”
Large 23 13”+ 12”+

SIZE AROUND HEAD FRONT TO BACK EAR TO EAR
Extra Petite 20-1/2” 12” 10-1/2” to 11”
Petite 21” 12-1/2” 11” to 11-1/2”
Average 21-1/2” 12-1/2” to 13” 11-1/2” to 12”
Large 23” 13”+ 12”+

Cap Blocking

To shape a knitted hat, blow up a balloon to a size to fill out the hat and then spray it with a water atomizer. Let it dry before removing from the balloon. Blocking the easy way!

Shaping Hats

Another way to shape knitted hats: place the finished hat over an upturned colander which is placed over a pot of boiling water on the stove. Let the steam shape your hat for you.

Finishing Tops of Caps

When you get to the top of a hat and it seems to puff up with too much yarn and stitches, use a smaller needle for the last few rounds.