How to measure your ring size (and get some cracking engagement ring deals)

how to measure ring size

Want to buy a ring online but don't know how to measure your ring size? Don't worry, we've got you covered.

Scroll down for our tips, plus to shop some amazing Black Friday engagement ring deals.


How can I measure my ring size at home?

There is an easy way you can do this at home, using a piece of string. First off, do consider that the ring needs to fit snuggly at the base of your finger, but not too snuggly that it can't fit over your knuckle. Do also bear in mind that your fingers expand in the heat, so it's good to measure them on a warm day or at home.

So, wrap a piece of string round the base of your finger, and mark with a pen the point where it overlaps. Then spread it straight on a hard surface, and measure the length in millimetres. You can now refer it to a ring size chart to find out the size.

How to measure ring size UK

Ring sizes vary in different countries. So for example, your UK ring size will be different to a US ring size or even a French ring size. The UK uses a letter chart, whereas other countries might use numbers.

If the circumference of your finger is 45.5mm, you are a ring size G. If your measurements are 46.8, you are an H etc etc, with half sizes in between.

You can find a UK ring size chart on most jewellery store websites, including H Samuel's.

Printable ring sizer

Another option if you're unsure is to print our a ring sizer and place your piece of string against it, or even better, a ring you already own. Just make sure it is to scale. You can download ring sizers online, or even request a free ring sizer from many jewellers.

Best engagement rings

Now that you have your ring size, time to shop some engagement ring bargains below, and check out all our other Black Friday engagement ring deals for more.

Don't forget to check our Marie Claire vouchers site before you shop for the latest offers and discounts from your favourite brands - think, Pandora, Missoma, Swarovski and more.

Penny Goldstone

Penny Goldstone is the Digital Fashion Editor at Marie Claire, covering everything from catwalk trends to royal fashion and the latest high street and Instagram must-haves.

Penny grew up in France and studied languages and law at the Sorbonne Nouvelle University in Paris before moving to the UK for her MA in multimedia journalism at Bournemouth University. She moved to the UK permanently and has never looked back (though she does go back regularly to stock up on cheese and wine).

Although she's always loved fashion - she used to create scrapbooks of her favourite trends and looks, including Sienna Miller and Kate Moss' boho phase - her first job was at, sourcing the best deals for everything from restaurants to designer sales.

However she quit after two years to follow her true passion, fashion journalism, and after many years of internships and freelance stints at magazines including Red, Cosmopolitan, Stylist and Good Housekeeping, landed her dream job as the Digital Fashion Editor at Marie Claire UK.

Her favourite part of the job is discovering new brands and meeting designers, and travelling the world to attend events and fashion shows. Seeing her first Chanel runway IRL at Paris Fashion Week was a true pinch-me moment.