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Baby Hat Sizes

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Baby Hat Sizes
Baby hat size chart

Chart shows standard circumference and length measurements for preemies to toddlers. Remember that this is a reference point only. Actual head sizes will vary.

© Erica Jackofsky

“Negative Ease”
Hats are made with something called negative ease. Negative ease is a sizing term that means the finished measurement is smaller than the actual measurement. In this case the finished hat is smaller than the head size. You can see where I took this into consideration in the 3rd row of the chart. I like to use less negative ease when making hats for babies and children than for adults. The reason for this is a baby’s tendency to grow at an alarming rate. You spent quality time making that hat, so you’ll probably want to make sure it fits for more than a day!

If your baby has a current head size of 15” and you make a hat that fits with no ease (exact measurement) then you’re ensuring that the hat can be worn until baby’s head reaches 16.5, or perhaps even 17, inches circumference.

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