Utility Loft → Hat Size → Fitted Sizes
Fitted Hat Sizes
A fitted hat is made to one exact head size. The number — like 7¼ — is your head's diameter in inches. Measure your head and convert it to a fitted size below.
Enter your head circumference above to see your hat size in every standard.
Fitted hat size chart (US)
| US fitted size | Circumference (cm) | Inches | EU | S / M / L |
|---|---|---|---|---|
| 6¾ | 53.9 | 21.2 | 54 | XS |
| 6⅞ | 54.9 | 21.6 | 55 | S |
| 7 | 55.9 | 22.0 | 56 | S |
| 7⅛ | 56.9 | 22.4 | 57 | M |
| 7¼ | 57.9 | 22.8 | 58 | M |
| 7⅜ | 58.9 | 23.2 | 59 | L |
| 7½ | 59.8 | 23.6 | 60 | L |
| 7⅝ | 60.8 | 24.0 | 61 | XL |
| 7¾ | 61.8 | 24.3 | 62 | XL |
| 7⅞ | 62.8 | 24.7 | 63 | XXL |
| 8 | 63.8 | 25.1 | 64 | XXL |
Fitted sizes rise in eighths. Between two? Size up and use sizing tape.
Related
Frequently asked questions
What does a fitted hat size mean?
A fitted hat has no adjustable strap — it's built to one exact head size, given as a number like 7¼. That number is your head's diameter in inches (circumference ÷ π), so it maps directly to a precise circumference. You buy the size that matches your measured head.
What is the most common fitted hat size?
For adults, 7¼ (about 58 cm) and 7⅜ (about 59 cm) are the most common, sitting in the middle of the range. Most people fall between 7 and 7⅝.
How do New Era 59FIFTY sizes work?
59FIFTY fitted caps use the standard US fitted scale — 6⅞ up to 8 in eighth-size steps. Measure your head, convert to a US size above, and buy that number. There's no stretch, so getting the size right matters.
What if my size isn't offered?
Fitted caps usually come in eighth-size steps. If you're between two, size up and add foam sizing tape inside the band to take up the small gap — most cap shops sell it cheaply.