How to Determine Your Hat Size

Written by ehow fashion, style & personal care editor
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Before you purchase the perfect hat to complete your wardrobe, take careful measurement of your head to ensure that the fit is just right.

Skill level:

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Things you need

  • Baseball Caps/hats
  • Calculators
  • Measuring Tapes

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  1. 1

    Place a flexible tape measure around the circumference of your head, 1 inch above your eyebrows and around the widest part of your head.

  2. 2

    Measure the circumference at least twice to be sure that you are getting an accurate measurement.

  3. 3

    Record the measurement in inches and/or centimeters.

  4. 4

    Use a hat-sizing conversion chart to determine your exact size. These are available at hat stores, or at>

  5. 5

    Ask the hat salesperson to confirm that your head measurement and estimated hat size are correct.

Tips and warnings

  • If a hat-sizing conversion chart is unavailable, divide your measurement (in inches) by 3.14. This should give you the basic hat size.
  • Some hats and baseball caps are made with Velcro or plastic adjustable straps in the back. These features allow you to purchase a hat that falls within a wide range of your actual head size.

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