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Ring Size Conversion Chart

At Windfall, we understand the importance of finding the right ring size when shopping online. Comfort is key, and we know that navigating through various measurements, numbers, and letters can be confusing. That's why we've taken the guesswork out of the equation and simplified the process for you with our handy Ring Size Conversion Chart.

To ensure your ring fits just right, accurate measurements are crucial. In addition to our Ring Size Conversion Chart, we offer helpful tips for for determining the circumference of your finger on our blog. Our step-by-step instructions make it easy to obtain precise measurements, guaranteeing that your chosen ring will fit comfortably and beautifully. Alternatively, you can skip the guess-work all together with our ring sizer tool available for purchase on our website.


Ring sizes can differ across countries and regions, making it a bit challenging to select the perfect fit. Our conversion chart is designed to help you easily determine your ideal ring size, bridging the gap between UK and US sizing conventions, both of which we utilise.

We understand that each piece of jewellery holds a special place in your heart, and we want to make sure it fits perfectly. If you find that your desired ring size is not available on the chart, reach out to our team and we are always happy to help you with a personalised ring size. Windfall offers a variety of custom options upon enquiry, from resizing and repairing your jewellery to bespoke and fully custom capabilities. 

Looking for a ring? Check out our full range of statement and stacker rings or if you're looking for something extra special, why not browse our ethical engagement rings.

Purchase your ring with confidence using our ring size conversion table and discover the beauty of Windfall's ethical, custom jewellery, all made right here in Melbourne, Australia.