Inner Diameter (mm) to UK Fitted Hat Size (Standard Fit)
1 Inner Diameter value = -0.96063 UK Fitted value · profile-dependent conversion · context: size system and fit profile
Direct Answer
1 Inner Diameter value equals -0.96063 UK Fitted value
This result depends on the selected profile context: size system and fit profile.
For 6 Inner Diameter value, this profile returns -0.76378 UK Fitted value.
Converter Calculator
1 Inner Diameter (mm) value =
-0.96063 UK Fitted value
Explanation
Inner Diameter (mm) converts to UK Fitted by normalizing to head circumference in millimeters, then mapping to the destination system. Fit profile fixed: Standard Fit.
From Inner Diameter value to UK Fitted value, results depend on the selected size system and fit profile and stay consistent with that profile across table rows and calculator input.
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Keep the same profile in both directions to avoid mixing lookup systems that use different size mappings.
Common Conversion Values
| Inner Diameter (mm) value | UK Fitted value |
|---|---|
| 6 | -0.76378 |
| 6.5 | -0.744094 |
| 7 | -0.724409 |
| 7.25 | -0.714567 |
| 7.5 | -0.704724 |
| 8 | -0.685039 |
| 54 | 1.125984 |
| 56 | 1.204724 |
| 58 | 1.283465 |
| 60 | 1.362205 |
| 62 | 1.440945 |