Measure an existing ring
The most accurate way to measure your finger is to use a ring that already fits that is a similar width to the ring you are ordering:
- Select one of your existing rings that fits your desired finger
- Measure the internal diameter of the ring (mm)
- Compare this against our chart below to find your perfect ring size.
Measure your finger
If you don't have a ring to measure, you can measure your finger:
- Wrap a piece of paper or string around your finger where you would like your ring to sit
- With a pen, mark where the string overlaps
- Stretch the length of the string against a ruler and record the length (mm). This will be your circumference.
- Use the below chart to determine your ring size.
RING SIZE GUIDE
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Inside diameter |
Inside circumference (mm) |
Australian Sizes |
US Sizes |
14.65 | 46.02 | H | 3 3/4 |
14.86 | 46.68 | H 1/2 | 4 |
15.04 | 47.25 | I | 4 1/4 |
15.27 | 47.97 | I 1/2 | 4 1/2 |
15.40 | 48.38 | J | 4 5/8 |
15.70 | 49.32 | J 1/2 | 5 |
15.80 | 49.64 | K | 5 1/8 |
16.00 | 50.27 | K 1/2 | 5 3/8 |
16.10 | 50.58 | L | 5 1/2 |
16.41 | 51.55 | L 1/2 | 5 7/8 |
16.51 | 51.87 | M | 6 |
16.71 | 52.5 | M 1/2 | 6 1/4 |
16.92 | 53.16 | N | 6 1/2 |
17.13 | 53.82 | N 1/2 | 6 3/4 |
17.35 | 54.51 | O | 7 |
17.45 | 54.82 | O 1/2 | 7 1/4 |
17.75 | 55.76 | P | 7 1/2 |
17.97 | 56.45 | P 1/2 | 7 3/4 |
18.19 | 57.15 | Q | 8 |
18.35 | 57.65 | Q 1/2 | 8 1/4 |
18.61 | 58.47 | R | 8 5/8 |
18.80 | 59.06 | R 1/2 | 8 7/8 |
19.10 | 60.00 | S | 9 1/8 |
19.31 | 60.66 | S 1/2 | 9 3/8 |
19.51 | 61.29 | T | 9 5/8 |
19.84 | 62.33 | T 1/2 | 10 |
20.02 | 62.89 | U | 10 1/4 |
20.20 | 63.46 | U 1/2 | 10 1/2 |
20.32 | 63.84 | V | 10 5/8 |
20.68 | 64.97 | V 1/2 | 11 |
20.94 | 65.78 | W 1/2 | 11 3/8 |
21.18 | 66.54 | X | 11 5/8 |
21.30 | 66.92 | X 1/2 | 11 7/8 |
21.49 | 67.51 | Y | 12 |
21.69 | 68.14 | Y 1/2 | 12 1/4 |
21.89 | 68.77 | Z | 12 1/2 |
22.10 | 69.43 | Z 1/2 | 12 3/4 |
22.33 | 70.15 | Z + 1 | 13 |
22.60 | 71.00 | Z + 1 1/2 | 13 1/2 |
Tips and tricks
Your fingers shrink and expand throughout the day, it is best to measure your finger size at the end of the day.
Make sure you measure the finger you intend to wear your ring on, each hand and finger may slightly differ in size.
If you are in between sizes, we recommend sizing up.
Ensure the size you have chosen allows enough room for the ring to easily pass along the entire finger.
Please note, the style of ring will also impact the choice of size. A larger ring may sit tighter than a finer ring.
Still not sure?
Visit us in store for a personalised sizing assessment where one of our fine jewellery specialists will help you find your best fit.