Ring Size Chart

In this simple chart you see the Inner Diameter and Inner Circumference in mm with their conversion to US/Canada & UK/Australia.

Find out about what's the best ring size for your fingers below this infographic. 

You can also get access to more and the conversions to other common sizes at the end.

Us, Canada & Australia, UK have two different ways of sizing rings. 

In the infographic or the chart you see additionally we put inner circumference and inner diameter in mm as well. Depending on which one of these is more comfortable for you, find the right size and its other numbers. No calculator needed.

Here's an example. Your size is "3 US" but you don't know how many mm it's Inner Diameter is. Simply by finding the number 3 in the US column first, then look at it's conversion in the same row for Inner Diameter. 

Women’s rings typically range from size 3 to 9. 
Men’s rings typically range from size 8 to 14.

Your ring should fit comfortably; snug enough so that it won't fall off, but loose enough to slide over your knuckle.

Finger size changes depending on the time of day, activities and the weather. Keep in mind:

• At the end of the day and when your fingers are warm (Fingers are smaller in the early morning and when cold.)
• Measure finger size 3 to 4 times to eliminate an erroneous reading.

You can download this Ring Size Chart in PDF if you can't see it properly or need it for whatever reason.