UK to India Ring Size

UK sizes are letters anchored to inner circumference (each full letter step is 1.25 mm), while the Bluestone India convention used here equals inner circumference in millimeters minus 40. Convert through the shared millimeter measurement: for example, UK size N½ corresponds to about 54.4 mm circumference, i.e. Indian size 14, and UK size L½ corresponds to about 51.9 mm, i.e. Indian size 12. Confirm against your jeweler's own chart before ordering, since India has no single universal standard.