UK to Diameter (mm) Ring Size (Comfort Fit)

1 UK value = 10.9128 Diameter value · profile-dependent conversion · context: size system and fit profile

Direct Answer

1 UK value equals 10.9128 Diameter value

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

For 4 UK value, this profile returns 13.3512 Diameter value.

Converter Calculator

1 UK value =
10.9128 Diameter (mm) value

Explanation

UK converts to Diameter (mm) by normalizing to ring diameter in millimeters, then remapping to the target system. Fit profile fixed: Comfort Fit.

For UK value to Diameter value, the active size system and fit profile determines the conversion constants applied to every value.

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

UK valueDiameter (mm) value
4 13.3512
5 14.164
6 14.9768
7 15.7896
8 16.6024
9 17.4152
10 18.228
11 19.0408
12 19.8536
13 20.6664