If you’re looking to buy a hat, knowing your hat size is essential. There are a few different ways to figure out what size you need. This guide will show you how.

How to calculate your hat size?

To find your hat size, measure the circumference of your head using a flexible tape measure. You should do this at a point approximately one inch above your ears so that you will get an accurate measurement rather than squeezing it down against the top of your head. Round up to the nearest half inch and use the chart below to determine what size hat fits you best.*

  • If you have a large forehead or long face, use this measurement instead: Measure from front-to-back across your forehead at its widest point (you’ll want to make sure it’s not too tight)

How to measure a head for a hat?

To get your head size, you’ll need to measure your head circumference.

Use a flexible tape measure and measure the circumference of your head by wrapping it around your forehead, just above the ears, and across the back of your neck in a single motion as seen below:

If you’re measuring for a hat that will sit on top of the head (i.e., baseball cap), make sure to measure where you want it to sit when worn—we recommend at least two fingers above the eyebrows for maximum comfort for longer-term wear!

How to use the hat size calculator?

This hat size calculator is a great way to determine the right hat for you. Here’s what you need to do:

  • Measure your head. Use a tape measurer and note the circumference of your head, which is usually about 2 or 3 inches above your eyebrows, around the back of your ears and across the forehead. This measurement will give you an idea of whether a hat will fit comfortably and how much space it’ll leave in front of your eyes if it falls down over them while reading in bed.
  • Find out what size looks best on you by using this calculator that takes into account everything from head shape and eye line position to face shape and jaw height (if applicable). Once you’ve determined which category most closely matches yours, choose one of its suggestions in order to complete this process successfully!


How do I know my hat size?

Hat size is based on the circumference of the head. In order to determine your proper hat size, you must take a measurement of your head.

What size hat is standard?

The most common male size is 7-⅜ and the average hat size for females is 7-¼.

Is 23 inches a big head?

In the hat world, head sizes over 23″ 3/8 would be considered a big head.