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Determining your ring size

What is your Ring Size Australian?


Have you ever tried to work out your ring size? Have you tried googling rings sizes and found lots of conflicting information?

We are here to set you on the right path.

The International guide for rings sizes is called ISO 8653:2016

Jewellery — Ring-sizes — Definition, measurement and designation

The ISO size convention is measured in mm and is used in Europe, in Australia, Ireland and the UK ring sizes are specified using an alphabetical scale, with half sizes.

Our chart shows the conversion sizes for most countries based in the ISO guide. (Chart was adapted from Wikipedia)


Your ring should fit your finger comfortably; snug enough so that when you shake your hand it will not fall off,  but loose enough to slide over your knuckle. The catch is that your finger size changes depending on the time of day and the weather, sometimes even your health can cause a change in finger size, water retention, immediately post exercise, arthritis, pregnancy, just to name a few.

If you have your finger sized in winter and early in the day you may find it is half a size smaller that if you measured your finger in the evening on a hot summers day.

So for best results measure your finger 3 or 4 times over different times of the day and week if you want to be really sure and at differing hand temperatures. Or consider when you buy a ring that it will fit your ring finger in summer but may need to be worn on your middle finger in winter.

Your finger sizes on your dominant hand are also typically half a size larger than the non dominant hand.

Another thing you should keep in mind the wider the band of the ring the more likely you will need to go up a half size in the ring. If its is a flat wide ring band it will “stick” to your finger more than a slim round cross section profile ring.

Your personal Ring Size Card


The Artisan Store Fremantle offers a free consultation to measure your finger/s so you will be prepared next time you go shopping, we provide you with a information card with your ring size details that you can carry it with you or just as importantly you can slip in your partners wallet so they have the information when they next go shopping for that special occasion.



There is lots of different ways you can try measuring your ring finger at home, but they accuracy is incredibly important as ring sizes vary dramatically with just being half a millimetre out. So that piece of string jus doesn’t really cut it.

The safest way to measure your ring finger at home is to match an existing ring against this printable chart.

Place the ring over the circles. Match the inside edge of the ring to the circle nearest in size. This measurement refers to the inside diameter of the ring and then match the diameter to the chart.

Alternatively you can wrap a strip of paper around your finger, or use a zip plastic tie. Then measure the paper strip length or place the zip tie on our chart.

International Ring Size Chart


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