Head Circumference (cm) to UK Fitted Hat Size (Snug Fit)

1 Head Circumference value = -0.874681 UK Fitted value · profile-dependent conversion · context: size system and fit profile

Direct Answer

1 Head Circumference value equals -0.874681 UK Fitted value

This result depends on the selected profile context: size system and fit profile.

For 6 Head Circumference value, this profile returns -0.248087 UK Fitted value.

Converter Calculator

1 Head Circumference (cm) value =
-0.874681 UK Fitted value

Explanation

Head Circumference (cm) converts to UK Fitted by normalizing to head circumference in millimeters, then mapping to the destination system. Fit profile fixed: Snug Fit.

Head Circumference value to UK Fitted value is profile-bound here: the selected size system and fit profile controls the mapping used by calculator and reference table.

Read more

Keep the same profile in both directions to avoid mixing lookup systems that use different size mappings.

Method & Reference (Verified)

  • Method basis: profile-bound mapping; constants depend on the selected profile encoded in the route.
  • Profile reference: size system and fit profile.
  • Consistency rule: keep the same profile in mirror direction to avoid mixing incompatible mappings.

Common Conversion Values

Head Circumference (cm) valueUK Fitted value
6 -0.248087
6.5 -0.185427
7 -0.122768
7.25 -0.091438
7.5 -0.060109
8 0.002551
54 5.767218
56 6.017856
58 6.268493
60 6.519131
62 6.769769