Knowing your ring size is crucial to making sure you can wear your ring as soon as you get it. When we refer to ‘ring size’ we mean the inside circumference of a ring that fits you properly. This is key ---knowing your correct ring size makes all the difference in getting a ring that will fit your finger correctly. Keep in mind that many countries have their own system of expressing ring size. The UK, The EU, and the USA all have distinct ring size charts. Australia and UK ring sizing charts are the same.