Hats Size Guide

What is the most accurate way to find my hat size?

The most reliable way is to measure your head with a flexible tape in centimetres, as this avoids rounding errors. Then compare it with our chart above to find your perfect fit.

Finding the Right Fit

Since hat sizes can vary by brand and style, we recommend checking the sizing info on each product page. The guide below gives a general idea, but exact measurements may differ.

Size Chart

Size Inches Metric (cm)
Small 21 1/8 - 21 1/2 54 - 55
Medium 21 7/8 - 22 1/4 56 - 57
Large 22 5/8 - 23 58 - 59
X-Large 23 1/2 - 23 7/8 60 - 61
2X-Large 24 1/4 - 24 5/8 62 - 63
3X-Large 25 - 25 1/2 64 - 65

How to Measure Your Head

  • Use a flexible measuring tape or a string.
  • Wrap it around your head about 0.3 cm (1/8 inch) above your ears and across your forehead—where the hat will sit.
  • Hold it snug but not too tight.
  • If you're between sizes, go for the larger one.

Sizing Tips

  • If you already own a well-fitting hat, check its size for reference.
  • Hat sizes may vary by brand, especially between UK and North American manufacturers.
  • Measuring in centimeters or inches is more accurate than relying on standard hat sizes.
  • Like clothing, hats can fit slightly differently depending on the maker.
  • If you're unsure, check the sizing details on the product page or contact us—we’re happy to help!

Quick Answers

  • What’s the most accurate way to size a hat? Measuring your head in centimetres is the most precise method.
  • What if I’m between two sizes? Always size up, as a slightly loose hat is more comfortable than one that’s too tight.
  • Do hats stretch over time? Yes—materials like wool and felt can relax slightly, while cotton caps and structured hats usually remain the same.

Our Promise

At HatsXCaps, we know that comfort and confidence go hand in hand. That’s why we offer a straightforward returns policy—so if your hat isn’t the perfect fit, you can easily exchange it. Our goal is to help you find a hat that not only fits your head but also fits your lifestyle.