How to Find Your Perfect Ring Size
Understanding your ring size is essential to finding the perfect fit. At Micheli, we use the Australian ring size scale, which corresponds to the internal circumference of the ring in millimetres. The best way to determine your ring size is to visit us in-store.
Find Your Ring Size at Home
To determine your size at home, measure the inner diameter of an existing ring using a ruler and compare it against the chart below. Because every millimetre counts and sizing varies across hands, ensure you measure a ring that sits comfortably on the exact finger intended for your new piece.
As a helpful guide, our most frequently crafted sizes are N (US 7) for women and T (US 10) for men.
| Diameter (mm) | Circum. (mm) | AU/NZ | US/CA |
|---|---|---|---|
| 14.1 | 44.2 | F | - |
| 14.5 | 45.5 | G | 1 1/2 |
| 14.9 | 46.7 | H | 4 |
| 15.3 | 48.0 | I | 4 1/2 |
| 15.5 | 48.7 | J | 4 3/4 |
| 15.9 | 49.9 | K | 5 1/4 |
| 16.3 | 51.2 | L | 5 3/4 |
| 16.7 | 52.5 | M | 6 1/4 |
| 17.1 | 53.8 | N | 6 3/4 |
| 17.5 | 55.0 | O | 7 1/4 |
| 17.9 | 56.3 | P | 7 3/4 |
| 18.3 | 57.6 | Q | 8 1/4 |
| 18.7 | 58.9 | R | 8 3/4 |
| 19.2 | 60.1 | S | 9 1/4 |
| 19.6 | 61.4 | T | 9 3/4 |
| 20.0 | 62.7 | U | 10 1/4 |
| 20.4 | 64.0 | V | 10 3/4 |
| 20.8 | 65.2 | W | 11 1/4 |
| 21.2 | 66.5 | X | 11 3/4 |
| 21.6 | 67.8 | Y | 12 1/4 |
| 21.8 | 68.5 | Z | 12 1/2 |
| 22.4 | 70.3 | Z1 | 13 1/4 |
| 23.0 | 71.6 | Z2 | 13 3/4 |
| 23.4 | 73.5 | Z4 | 14 1/2 |
Book a Consultation
If you’d like more accurate measurements or need help resizing your ring, book a consultation with our expert jewellers today. We can assist you in finding the perfect fit and even offer professional ring resizing services for all your fine jewellery needs.
Frequently Asked Questions
What if my ring doesn’t fit when it arrives?
Should your piece require an adjustment upon arrival, we offer one complimentary resizing for engagement and wedding rings within the first 12 months of completion, applicable to eligible designs and metal types. For complete terms, please visit our dedicated resizing page.
Can I get my ring size checked in your showroom?
Certainly. Our team can determine your exact size in-person without any guesswork. We warmly invite you to book an appointment at either of our Melbourne showrooms.
How can I secretly know my partner's ring size?
Discovering this covertly can be tricky, but we have gathered our best tips and tricks to help you navigate it discreetly over on this page.
Does resizing weaken the ring?
Resizing involves adding or subtracting a small amount of precious metal to achieve the new fit. While extreme size alterations can affect structural integrity, our master jewellers operate within strict sizing thresholds to protect the piece. Using advanced laser welders for seamless precision, our workshop upholds rigorous quality standards, concluding every resize with a thorough clean and polish.
What is the most common engagement ring size?
While finger dimensions vary significantly, most clients tend to fall between sizes K and P. If your measurement sits outside this spectrum, we recommend verifying it with a secondary method, as designs feature specific resizing limitations.






















































































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