Ring Size Guide

Find your perfect ring size with our comprehensive guide

Method 1: Measure an Existing Ring

The most accurate way to find your ring size is to measure a ring that already fits perfectly.

  1. 1 Find a ring that fits the intended finger perfectly
  2. 2 Place the ring on a ruler and measure the inside diameter
  3. 3 Use the measurement to find your size in the chart below

Method 2: Measure Your Finger

Use a string or paper strip to measure your finger circumference.

  1. 1 Wrap a string or paper strip around your finger
  2. 2 Mark where the string overlaps
  3. 3 Measure the length with a ruler
  4. 4 Find your size using the circumference in the chart

Ring Size Chart

US Size UK Size EU Size Diameter (mm) Circumference (mm)
4H4714.946.8
4.5I4815.348.0
5J4915.749.3
5.5K5016.150.6
6L5116.551.8
6.5M5216.953.1
7N5417.354.4
7.5O5517.755.7
8P5618.157.0
8.5Q5718.558.3
9R5818.959.5
9.5S6019.460.8
10T6119.862.1
10.5U6220.263.4
11V6320.664.6
11.5W6421.065.9
12X6621.467.2

Important Tips

Best time to measure: Measure your finger at the end of the day when it's at its largest size.
Temperature matters: Fingers are smaller in cold weather and larger in warm weather.
Different fingers: Each finger is a different size, even on the same hand.
Wide bands: If choosing a wide band ring, consider going up half a size for comfort.
Between sizes: If you're between sizes, it's usually better to size up for comfort.