Please refer to the following link for the complete international ring size conversion chart: https://www.ringsizes.co.

JEWELLERY SIZE GUIDE
- Wrap a ribbon around the base of your finger, wrist or neck. To ensure a comfortable fit, we suggest measuring your knuckle as well for rings.
- Mark the point where the ribbon overlaps with a pen.
- Measure the length of the ribbon from the start to the mark in millimeters; this will be the circumference of your finger / bracelet / necklace.
Keep in mind that the size of your fingers varies during the day, your hands swell during the day, especially under the effect of heat. So take your measurement in the morning.
The sizes between the left hand and the right hand may vary, because one hand is usually larger than the other.