Hat Size to cm Converter

Convert fitted hat sizes to head circumference in centimeters and inches with a quick reference chart.

Last updatedHow we build & check our tools

How This Tool Works

Select a fitted US hat size from the dropdown and the converter shows the matching head circumference in centimeters and inches. The chart uses common fitted hat increments from 6 3/4 through 8.

  • Input: Fitted hat size, such as 7 1/4.
  • Output: Head circumference in centimeters and inches.
  • Reference: The full chart highlights the selected size so you can compare nearby options.

Why This Matters

A hat that is too small can feel tight, while one that is too large can shift or sit poorly. Converting a fitted size to head circumference helps compare product listings, size charts, and tape-measure results before ordering.

Measure around the head just above the ears and across the forehead, then choose the closest chart value.

Common Mistakes to Avoid

  • Do not measure over hair volume or bulky headwear: Measure where the hat band will sit.
  • Do not mix fitted and generic labels: Generic sizes like M or L vary by brand, so use circumference when precision matters.
  • Check brand charts: This page uses common reference values, but manufacturers may round or group sizes differently.

Frequently Asked Questions

Common questions about the Hat Size to cm Converter

Size conversions are approximate guides since sizing varies between brands and manufacturers. Use these conversions as a starting point and always check individual brand size charts when possible.

Explore More Tools

Continue your financial journey with these related calculators

clothing-sizes

Shoe Size Converter

Free online clothing sizes unit converter. Convert between all clothing sizes units instantly with accurate results, formulas, and reference tables. No signup required.

Try it now
clothing-sizes

Hat Size Converter

Free online clothing sizes unit converter. Convert between all clothing sizes units instantly with accurate results, formulas, and reference tables. No signup required.

Try it now
clothing-sizes

Glove Size Converter

Free online clothing sizes unit converter. Convert between all clothing sizes units instantly with accurate results, formulas, and reference tables. No signup required.

Try it now
clothing-sizes

Belt Size Converter

Free online clothing sizes unit converter. Convert between all clothing sizes units instantly with accurate results, formulas, and reference tables. No signup required.

Try it now
clothing-sizes

Kids Clothing Size Clothing Size Converter - Free Online

Convert kids clothing size clothing size values instantly with our free tool. Get accurate results with clear explanations.

Try it now
clothing-sizes

Clothing Size Converter

Free online clothing sizes unit converter. Convert between all clothing sizes units instantly with accurate results, formulas, and reference tables. No signup required.

Try it now