Ring Sizing Guide Australia — How To Measure Your Ring Size At Home
Free ring sizing guide for Australia. How to measure your ring size at home using string or paper. Australian, US, UK and European ring size conversion chart. Ruhuna Gemstones Brisbane.
Ruhuna Gemstones · Guide
Ring Sizing Guide
Getting your ring size right matters — especially for a piece made to order. Here is everything you need to measure accurately at home, with a full international conversion chart.
Measuring With String Or Paper
The most reliable at-home method. All you need is a thin strip of paper or a piece of string, a pen and a ruler.
01
Wrap
Wrap the paper or string snugly around the base of the finger you intend to wear the ring on. It should sit comfortably — not tight, not loose.
02
Mark
Mark the point where the paper or string overlaps with a pen. This marks the circumference of your finger.
03
Measure
Lay the paper or string flat and measure the length in millimetres from the end to your mark. This is your finger circumference.
04
Convert
Use the conversion table below to find your ring size in Australian, US, UK or European sizing.
Measure Three TimesFinger size changes throughout the day — fingers are slightly larger in the evening and in warm weather. Measure at the end of the day for the most accurate result. Take three measurements and use the average.
Measuring An Existing Ring
If you already own a ring that fits the correct finger well, this method is even simpler.
01
Place The Ring
Place the ring flat on a ruler or piece of white paper.
02
Measure The Diameter
Measure the internal diameter of the ring in millimetres — the distance across the inside of the ring from one inner edge to the other.
03
Convert
Use the diameter column in the conversion table below to find your ring size.
International Ring Size Chart
Australian ring sizes follow the same system as the United Kingdom — alphabetical sizing from A to Z. Use the chart below to convert between Australian, US, UK and European sizing.
| Diameter (mm) | Circumference (mm) | Australia / UK | USA / Canada | Europe |
|---|---|---|---|---|
| 14.1 | 44.2 | D | 2 | 44 |
| 14.5 | 45.5 | E | 2.5 | 45.5 |
| 14.9 | 46.8 | F | 3 | 47 |
| 15.3 | 48.0 | G | 3.5 | 48 |
| 15.7 | 49.3 | H | 4 | 49 |
| 16.1 | 50.6 | I | 4.5 | 50.5 |
| 16.5 | 51.9 | J | 5 | 52 |
| 16.9 | 53.1 | K | 5.5 | 53 |
| 17.3 | 54.4 | L | 6 | 54.5 |
| 17.7 | 55.7 | M | 6.5 | 55.5 |
| 18.1 | 57.0 | N | 7 | 57 |
| 18.5 | 58.3 | O | 7.5 | 58 |
| 18.9 | 59.5 | P | 8 | 59.5 |
| 19.3 | 60.8 | Q | 8.5 | 61 |
| 19.7 | 62.1 | R | 9 | 62 |
| 20.2 | 63.4 | S | 9.5 | 63 |
| 20.6 | 64.6 | T | 10 | 64.5 |
| 21.0 | 65.9 | U | 10.5 | 66 |
| 21.4 | 67.2 | V | 11 | 67 |
| 21.8 | 68.5 | W | 11.5 | 68.5 |
| 22.2 | 69.7 | X | 12 | 70 |
| 22.6 | 71.0 | Y | 12.5 | 71 |
| 23.0 | 72.3 | Z | 13 | 72 |
The highlighted rows represent the most common ring sizes for women in Australia — sizes J through O.
Tips For An Accurate Fit
Time Of Day
Fingers are slightly larger in the evening and in warm weather. Measure at the end of the day for the most accurate result — never first thing in the morning.
Temperature
Cold temperatures cause fingers to contract. If you measure in winter or air conditioning, your measured size may be slightly smaller than your true comfortable wearing size.
Band Width
Wider bands fit more snugly than narrow ones. If your setting has a band wider than 6mm, consider going half a size up from your measured size for a comfortable fit.
Knuckle Size
If your knuckle is significantly larger than the base of your finger, size to your knuckle so the ring can be put on and taken off comfortably — it will sit slightly loose at the base.
Measure Multiple Times
Take at least three measurements on different days and at different times. Use the average for the most reliable result.
When In Doubt
If you are between two sizes, size up. A ring that is slightly too large can be resized down more easily than one that is too small.
ResizingAll Ruhuna Signature Creations can be resized after delivery if needed. We recommend confirming your size via consultation before your piece is made — but if your size changes, we will always find a solution.
We Can Help
If you are unsure of your size, the most reliable option is to visit a local jeweller for a professional sizing — most will do this at no charge. Alternatively, book a private consultation with us and we will guide you through the process and confirm your size before your piece goes into production.
For Signature Creations and bespoke commissions, we always confirm ring size during the consultation process before crafting begins. There is no pressure to know your size before reaching out — that is exactly what the consultation is for.
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