This is a great guide to finding your hat size, where you’ll learn to take your measurement to find the perfect fit, and also convert between US, UK and French sizes.

Use the hat size chart: To find your hat size, take your ruler measurement and find the corresponding size on the chart. Usually, these charts will list the measurements in centimeters and inches.

Find your perfect hat size with this adult hat size conversion chart from Hats USA.

Measure the distance around your head at the position where your hat normally rests, using a soft tape measure (dressmaker/tailor type). This is usually done right above the ears and across the forehead. …

Use our simple measuring tape method to ensure that you find the ideal hat size. Your perfect hat deserves the perfect fit. Having followed our hat measurement guide you are all set to compare your …

Hat sizes are usually measured in centimeters (cm) or in inches. Hat sizes usually depend on the brands and countries, but the circumference head is the major factor. Hats are available in different sizes …

Convert hat sizes between US, EU, UK, French and SMLXL hat size systems.

May 25, 2025 · Simply enter your head circumference in cm or inches and get accurate hat size results with a detailed conversion chart.

Aug 28, 2025 · This hat size calculator and guide is mobile friendly, quick math, clear charts in inches and centimeters, and fit notes you can use in a store or on your couch.

Use this hat sizing chart to find the right hat size for your head. It includes measurements taken in centimeters or inches and its conversion to US size.