Install Ruban Size from the Shopify App Store

Ring size chart

A ready-made ring size chart for your Shopify store: UK and EU sizes, sizes 5 to 12 with inner diameter and inner circumference in centimeters or inches, a how to measure guide and Find my size. Open it in Ruban Size, adjust it to your brand and choose the products it shows on.

The real size guide. Switch units, or open Find my size.

USUKEUInner diameter (cm)Inner circumference (cm)
5J 1/2491.574.93
6L 1/251.51.655.18
7N 1/2541.735.44
8P 1/2571.815.69
9R 1/259.51.895.94
10T 1/2621.976.2
11V 1/264.52.066.45
12Y672.146.71

How to measure

  1. Wrap a strip of paper around the base of your finger.
  2. Mark where it overlaps and measure the length: that is the inner circumference.

Fingers swell in the heat: measure at the end of the day.

Use this template in your store

  1. Install Ruban Size

    Free for 5 size charts, from the Shopify App Store.

  2. Start from “Rings”

    In Size charts, Start from a template. It opens as a draft.

  3. Adjust and choose where

    Your measurements, then the products it shows on. Save.

Try Ruban Size on your store.

Free for 5 size charts. Pro and Fit start with a 14-day free trial, billed by Shopify.