Place a marker between decrease sections to avoid having to count stitches each time. Example of a form-fitting crown decrease. Plain rounds alternate with the decrease rounds until the end of the crown, where the last 2 or 3 decrease rounds are worked sequentially to keep the top rounded, rather than pointy.
When should I decrease my knit hat?
Plan to round down about 2″. So if your head circumference is 22″, you’d round it to 20″ to give yourself a 2″ negative ease — or round down just an inch if you want your hat to fit more loosely. Once you’ve got the circumference, write that number down so you don’t forget it!