Generic Hat Sizes
This is a universal hat size chart applicable to most standard adult hats. Use it as a reliable starting point if you are unsure about the specific type of your hat.
| US Alpha | US Fitted | UK Fitted | EU | Head (in) | Head (cm) |
|---|---|---|---|---|---|
| XS | 6 1/2 | 6 3/8 | 52 | 20.5" | 52 |
| XS | 6 5/8 | 6 1/2 | 53 | 20.875" | 53 |
| S | 6 3/4 | 6 5/8 | 54 | 21.25" | 54 |
| S | 6 7/8 | 6 3/4 | 55 | 21.625" | 55 |
| M | 7 | 6 7/8 | 56 | 22" | 56 |
| M | 7 1/8 | 7 | 57 | 22.375" | 57 |
| L | 7 1/4 | 7 1/8 | 58 | 22.75" | 58 |
| L | 7 3/8 | 7 1/4 | 59 | 23.125" | 59 |
| XL | 7 1/2 | 7 3/8 | 60 | 23.5" | 60 |
| XL | 7 5/8 | 7 1/2 | 61 | 23.875" | 61 |
| XXL | 7 3/4 | 7 5/8 | 62 | 24.25" | 62 |
| XXL | 7 7/8 | 7 3/4 | 63 | 24.625" | 63 |
| XXXL | 8 | 7 7/8 | 64 | 25" | 64 |
How to Use This Generic Hat Sizes Size Chart
Step-by-Step Guide
- Measure Your Head: Use a soft measuring tape to measure the circumference of your head, about 1 inch (2.5 cm) above your eyebrows and ears, where the hat will sit.
- Find Your Measurement: Look up your head circumference (in inches or centimeters) in the chart above to find your corresponding hat size.
- Convert to Your Target System: Once you know your size in one system (e.g., US Fitted), you can easily find the equivalent in other systems (UK Fitted, EU) using the same row in the chart.
- Consider Hat Style: Different hat styles fit differently. Structured hats like fitted baseball caps require precise sizing, while flexible hats can accommodate a wider range.
Important Tips
- ✓Measure at the Right Time: Head size can vary slightly throughout the day. Measure when your hair is in its normal state for the most accurate size.
- ✓Account for Hair: If you have thick or long hair, you may need to adjust your size slightly. Consider how you'll typically wear your hair with the hat.
- ✓Size Up When in Doubt: For rigid hats, it's better to size up slightly for comfort. A slightly loose hat can be adjusted with sizer tape, but a too-tight hat is usually unwearable.
- ✓Check Brand-Specific Charts: Some brands may have slight variations in sizing. Always check the brand's official size chart when available for the most accurate fit.
How to Read This Chart
US Alpha: The common letter-based sizing (S, M, L) used in the United States.
US Fitted: A precise sizing system based on head circumference in inches, famously used by brands like New Era. Represented as a fraction (e.g., 7 1/4).
UK Fitted: Similar to US Fitted but with slightly different values. Also represented as a fraction.
EU: The standard European size, which usually corresponds directly to the head circumference in centimeters.
Head (in/cm): The raw measurement of your head's circumference in inches and centimeters, which is the foundation for all other sizes.
Frequently Asked Questions
How do I measure my head for a hat?
Use a soft measuring tape to measure the circumference of your head, about 1 inch (2.5 cm) above your eyebrows and ears, where the hat will sit. Make sure the tape is level and snug but not tight. If you don't have a measuring tape, use a string and then measure the string with a ruler.
What if my measurement is between two sizes?
For most hats, especially those made of rigid materials, we recommend going up to the next size for comfort. A slightly loose hat is often wearable (and can be adjusted with sizer tape), whereas a hat that's too tight is usually unwearable.
Are these charts universal for all brands?
These charts are based on industry standards and provide a very reliable starting point. However, sizing can vary slightly between brands. If you're buying an expensive or final-sale item, it's always best to check the manufacturer's specific size guide if possible.