Ring Sizing Guide

Getting the right fit matters. Use the steps below before ordering.

How to measure your ring size

Using a ring that already fits

  1. Choose a ring that fits the intended finger.
  2. Measure the inside diameter straight across the centre in millimetres.
  3. Match the measurement to the chart below.

Measuring your finger

  1. Wrap a narrow strip of paper around the base of your finger.
  2. Mark where the paper overlaps.
  3. Measure that length in millimetres to find the circumference.
  4. Compare it with the chart.

Measure at the end of the day when your hands are warm. If you fall between sizes, choose the larger size. Wider bands can feel tighter than narrow rings.

UK ring size chart

UK size Inside diameter Finger circumference
F 14.1 mm 44.2 mm
G 14.5 mm 45.5 mm
H 14.9 mm 46.8 mm
I 15.3 mm 48.0 mm
J 15.5 mm 48.7 mm
K 15.9 mm 50.0 mm
L 16.3 mm 51.2 mm
M 16.7 mm 52.5 mm
N 17.1 mm 53.8 mm
O 17.5 mm 55.1 mm
P 17.9 mm 56.3 mm
Q 18.3 mm 57.6 mm
R 18.8 mm 58.9 mm
S 19.2 mm 60.2 mm
T 19.6 mm 61.4 mm
U 20.0 mm 62.7 mm
V 20.4 mm 64.0 mm
W 20.8 mm 65.3 mm
X 21.2 mm 66.6 mm
Y 21.6 mm 67.8 mm
Z 22.0 mm 69.1 mm

Download the Ring Sizing Guide PDF

Custom sizing

Custom sizing is available for selected designs. If your size falls outside this chart or you need help choosing, contact info@kaliberdesigns.co.nz before ordering.

Measurements are a practical guide. Ring fit can vary with band width and finger shape.