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How to Measure Your Ring Size

At My Jewellery Shop, we understand that finding the perfect ring size is just as important as choosing the perfect piece. Whether you're shopping for yourself or someone special, we’ve created this guide to help you confidently determine the right fit.

There are two main ways to discover your ideal size: using an existing ring or measuring your finger. We use the standard Australian letter sizing system.

 

Option 1: Measure a Ring You Already Own

  1. Choose a ring that fits the intended finger well.
  2. Measure the internal diameter (in millimetres) using a ruler or measuring tape. Be sure to measure only the part that touches your finger.
  3. Use our Ring Size Chart below to match your measurement to the corresponding Australian ring size.

Method 2: Measure Your Finger

  1. Cut a strip of paper or string roughly 10cm long.
  2. Wrap it around the base of the finger you plan to wear the ring on.
  3. Mark where the end overlaps with a pen.
  4. Lay it flat and measure the distance from the end to the mark using a millimetre ruler. This is your finger’s circumference.
  5. Refer to the Ring Size Chart below to find your match.


Expert Tips

  • Measure twice for accuracy.
  • Your fingers can swell slightly throughout the day, measure in the afternoon for best results.
  • Each finger (and hand) is different. Be sure to measure the correct one.
  • If you're between sizes, we recommend choosing the larger size for comfort.
  • Shopping for a meaningful piece? Visit us in-store for a professional fitting, or book a custom design consultation with our friendly team.

Ring Size Chart

Diameter (mm) Circumference (mm) AU / NZ US / CA
14.1 44.2 F 3
14.5 45.5 G 3 ½
14.9 46.7 H 4
15.3 48.0 I 4 ½
15.5 48.7 J 4 ¾
15.9 49.9 K 5 ¼
16.3 51.2 L 5 ¾
16.7 52.5 M 6 ¼
17.1 53.8 N 6 ¾
17.5 55.0 O 7 ¼
17.9 56.3 P 7 ¾
18.3 57.6 Q 8 ¼
18.7 58.9 R 8 ¾
19.2 60.1 S 9 ¼
19.6 61.4 T 9 ¾
20.0 62.7 U 10 ¼
20.4 64.0 V 10 ¾
20.8 65.2 W 11 ¼
21.2 66.5 X 11 ¾
21.6 67.8 Y 12 ¼
21.8 68.5 Z 12 ½
22.4 70.3 Z1 13 ¼
23.0 71.6 Z2 13 ¾
23.0 72.3 Z3 14
23.4 73.5 Z4 14 ½

 

Prefer a Physical Ring Sizer?

To make the process even easier, we offer professional plastic ring sizers in-store. If you’re purchasing a ring online and want extra confidence in your size, we’re more than happy to send one to you free of charge before your purchase is finalised.

Simply contact our team and we’ll have one delivered to your doorstep. It’s just another way we ensure your experience with us is as seamless and special as the piece you choose.

 

Can Rings Be Resized?

In most cases, yes. Many of our gold and platinum rings can be resized by our expert jewellers. However, some materials such as titanium or tungsten, and certain full-eternity designs cannot be resized due to their unique structure.

For custom designs or significant size changes, we recommend a professional fitting before placing your order. If resizing is needed later, our team will always advise you on what’s possible based on the style and setting of your piece.

 

Shopping for a Surprise?

Choosing a ring for someone special? If you’re unsure of their ring size:

  • Borrow a ring they wear on the correct finger and use our printable guide
  • Ask close friends or family members if they know their size
  • Visit our showroom with the ring for professional sizing
  • Choose a design that can be resized later if needed

Our team is always here to help, online or in-store.

 

Still Unsure?

Book a free in-store or virtual consultation with our jewellery experts. We’ll guide you through the process and ensure the perfect fit for your forever piece.