Fitted Hat Size Chart
Baseball / fitted hat size chart: US fractions (7, 7 1/4, 7 3/8) with head circumference in inches and cm—the system used on New Era–style caps. Letter S/M/L stretch hats use a different scale.
Quick answer: 7 1/4 ≈ 22.75 in / 58 cm · 7 3/8 ≈ 23.1 in / 59 cm · 7 ≈ 22 in / 56 cm. Jump to a fraction below or use the full table.
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Popular fitted sizes (inches & cm)
US fitted fractions (7, 7 1/4, 7 3/8…) with head circumference in inches and cm. Numbers match this chart's rows (New Era–style caps use the same fraction system; confirm the product tag). S/M/L stretch hats use a different scale.
- 7 · M22" · 55.8 cmUS fitted 7 (M) ≈ 22 in / 55.8 cm (EU 56).
- 7 1/8 · M22.375" · 56.8 cmUS fitted 7 1/8 (M) ≈ 22.375 in / 56.8 cm (EU 57).
- 7 1/4 · L22.75" · 57.7 cmUS fitted 7 1/4 (L) ≈ 22.75 in / 57.7 cm (EU 58).
- 7 3/8 · L23.125" · 58.7 cmUS fitted 7 3/8 (L) ≈ 23.125 in / 58.7 cm (EU 59).
- 7 1/2 · XL23.5" · 59.6 cmUS fitted 7 1/2 (XL) ≈ 23.5 in / 59.6 cm (EU 60).
- 7 5/8 · XL23.875" · 60.6 cmUS fitted 7 5/8 (XL) ≈ 23.875 in / 60.6 cm (EU 61).
- 7 3/4 · XXL24.25" · 61.5 cmUS fitted 7 3/4 (XXL) ≈ 24.25 in / 61.5 cm (EU 62).
- 7 7/8 · XXL24.625" · 62.5 cmUS fitted 7 7/8 (XXL) ≈ 24.625 in / 62.5 cm (EU 63).
- 8 · XXXL25" · 63.5 cmUS fitted 8 (XXXL) ≈ 25 in / 63.5 cm (EU 64).
- 6 7/8 · S21.625" · 55 cmUS fitted 6 7/8 (S) ≈ 21.625 in / 55 cm (EU 55).
| 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" | 55.8 |
| M | 7 1/8 | 7 | 57 | 22.375" | 56.8 |
| L | 7 1/4 | 7 1/8 | 58 | 22.75" | 57.7 |
| L | 7 3/8 | 7 1/4 | 59 | 23.125" | 58.7 |
| XL | 7 1/2 | 7 3/8 | 60 | 23.5" | 59.6 |
| XL | 7 5/8 | 7 1/2 | 61 | 23.875" | 60.6 |
| XXL | 7 3/4 | 7 5/8 | 62 | 24.25" | 61.5 |
| XXL | 7 7/8 | 7 3/4 | 63 | 24.625" | 62.5 |
| XXXL | 8 | 7 7/8 | 64 | 25" | 63.5 |
How to use this fitted chart
- Measure your head about 1/8" above the ears; note inches or cm.
- Find the circumference in the Head (in) or Head (cm) column.
- Read across for US fitted, UK, EU, and letter size on the same row.
- Between sizes? Size up for rigid fitted and cowboy hats.
How to read this chart
US Fitted: Fraction sizes (e.g. 7 1/4) matched to head circumference in inches—common on fitted baseball caps.
UK Fitted / EU: Parallel systems; EU often tracks cm closely.
Head (in/cm): Your measured circumference—the most reliable input for hat size conversion.