Complete Australian ring size chart for Belconnen ACT โ AU letter sizes, US, EU and mm measurements, plus where to get sized locally in Belconnen
In Belconnen and across Australia, ring sizes are measured using letters (F through Z+) unlike the US which uses numbers. The average Australian women's ring size is AU M–N (US 6¼–6¾, EU 52–54, diameter 16.5–17.1mm). You can get professionally sized for free at Goldmark, Prouds, or Angus & Coote inside Westfield Belconnen on Benjamin Way, Belconnen ACT 2617.
All major jewellers at Westfield Belconnen offer free professional ring sizing in-store. Walk in without an appointment — sizing takes less than 2 minutes with a calibrated ring mandrel tool for a precise AU letter size reading.
One of Australia's largest jewellery chains. Offers free ring sizing, resizing services, and a wide range of engagement and wedding rings in all AU sizes.
Free Sizing ✓Australian family-owned jeweller since 1903. Full range of AU ring sizes in stock with complimentary professional sizing available every day.
Free Sizing ✓Premium Australian jeweller with over 100 years of history. Professional ring sizing available in store with no appointment needed at any time.
Free Sizing ✓Highlighted rows represent the most commonly purchased ring sizes in Australia. All Belconnen jewellers stock the full popular range in store. Sizes outside this range may need to be ordered.
| 🇦🇺 AU / NZ Size | 🇺🇸 US Size | 🇪🇺 EU Size | Diameter (mm) | Circumference (mm) | Typical Fit |
|---|---|---|---|---|---|
| F | 3 | 44 | 14.07 mm | 44.2 mm | Petite |
| G | 3½ | 45.5 | 14.48 mm | 45.5 mm | Petite |
| H | 4 | 46.75 | 14.88 mm | 46.8 mm | Small |
| I | 4½ | 48 | 15.29 mm | 48.0 mm | Small |
| J½ ⭐ | 5 | 49.25 | 15.70 mm | 49.3 mm | Popular ♀ |
| K½ | 5½ | 50.5 | 16.10 mm | 50.6 mm | Popular ♀ |
| L½ | 6 | 51.75 | 16.51 mm | 51.9 mm | Popular ♀ |
| M 🏆 | 6¼ | 52.5 | 16.71 mm | 52.5 mm | Most Common ♀ |
| M½ 🏆 | 6½ | 53.25 | 16.92 mm | 53.1 mm | Most Common ♀ |
| N ⭐ | 6¾ | 53.75 | 17.12 mm | 53.8 mm | Most Common ♀ |
| N½ | 7 | 54.5 | 17.32 mm | 54.4 mm | Popular ♀ |
| O½ | 7½ | 55.75 | 17.73 mm | 55.7 mm | Popular ♀ |
| P½ | 8 | 57 | 18.14 mm | 57.0 mm | Popular ♀ |
| Q½ | 8½ | 58.25 | 18.54 mm | 58.3 mm | Above Avg |
| R | 8¾ | 59 | 18.75 mm | 58.9 mm | Popular ♂ |
| R½ | 9 | 59.5 | 18.95 mm | 59.5 mm | Popular ♂ |
| S½ | 9½ | 61 | 19.35 mm | 60.8 mm | Popular ♂ |
| T½ | 10 | 62 | 19.76 mm | 62.1 mm | Popular ♂ |
| U½ | 10½ | 63.5 | 20.17 mm | 63.4 mm | Popular ♂ |
| V½ | 11 | 65 | 20.57 mm | 64.6 mm | Large ♂ |
| W½ | 11½ | 66 | 20.98 mm | 65.9 mm | Large ♂ |
| Z | 12½ | 68.5 | 21.79 mm | 68.5 mm | XL |
| 🇦🇺 AU / NZ | 🇺🇸 US Size | 🇬🇧 UK Size | 🇪🇺 EU Size | 🇯🇵 Japan | Diameter (mm) |
|---|---|---|---|---|---|
| J½ | 5 | J½ | 49.25 | 9 | 15.70 mm |
| K½ | 5½ | K½ | 50.5 | 10 | 16.10 mm |
| L½ 🏆 | 6 | L½ | 51.75 | 11 | 16.51 mm |
| M½ | 6½ | M½ | 53.25 | 12 | 16.92 mm |
| N½ | 7 | N½ | 54.5 | 13 | 17.32 mm |
| O½ | 7½ | O½ | 55.75 | 14 | 17.73 mm |
| P½ | 8 | P½ | 57 | 15 | 18.14 mm |
| R½ | 9 | R½ | 59.5 | 17 | 18.95 mm |
| T½ | 10 | T½ | 62 | 19 | 19.76 mm |
| V½ | 11 | V½ | 65 | 21 | 20.57 mm |
Cut a strip of paper approximately 1 cm wide and 10 cm long. Non-stretch string or dental floss works well. Avoid elastic or stretchy material as it will give an inaccurate reading.
Wrap the paper around the base of the finger you want to size. It should be snug but not tight, and must be able to slide over your knuckle comfortably — especially important for the ring finger.
Use a pen to mark the point where the end of the paper meets itself around your finger. The length from the start to that mark is your finger circumference in millimetres.
Lay the paper flat against a ruler and read the measurement in mm. For example — if your measurement is 52.5 mm, your AU size is M (US 6¼, EU 52.5, diameter 16.71 mm).
Find the closest value in the Circumference (mm) column in the chart above. If your measurement falls between two sizes, always choose the larger AU letter size for a comfortable fit.
Pick a ring that fits the specific finger you want to size. It should sit snugly at the base of the finger without being difficult to remove.
Use a millimetre ruler to measure straight across the inside opening of the ring. Example: 16.5 mm inner diameter = AU L½ (US 6, EU 51.75).
Find your diameter in the chart above and read across for your AU letter, US number, EU size, and full circumference. You can also take the ring into any Westfield Belconnen jeweller for instant matching.
Belconnen experiences some of Australia's coldest winters with temperatures near 0°C. Cold causes fingers to contract by up to ½ an AU size — always measure in mild conditions for the most accurate result.
Fingers are naturally larger in the afternoon and evening due to daily activity and circulation. Measure in the late afternoon for the most comfortable and accurate all-day AU letter size.
Your dominant hand's fingers are typically ½ an AU size larger than your non-dominant hand. Always measure the specific hand you plan to wear the ring on for an accurate size.
Fluid retention during pregnancy can increase AU ring size by 1–2 letters. Size typically returns to normal 3–6 months postpartum — wait before resizing any rings.
Wide bands (over 6mm) feel tighter than narrow bands at the same AU size. If choosing a wide engagement or wedding band, go up half a letter size from your normal measurement.
High sodium intake and dehydration cause temporary finger swelling. Avoid measuring after a salty meal or intense exercise. Measure when well-hydrated and rested for best accuracy.
Complete AU letter ring size chart for women with US, EU, UK and mm measurements, popular size ranges, and expert sizing tips.
Average men's ring sizes in AU letters with US and EU conversions — including wedding band width guidance and how-to-measure tips.
The most common Australian engagement ring size for women — with AU letter, US and EU equivalents and surprise ring buying tips.
Step-by-step Australian ring sizing guide using paper, string, or an existing ring — with a free online AU ring size calculator.
Convert your Australian letter ring size to US, EU, UK, Japan and Swiss sizes — full international conversion table with mm measurements.
How weight loss or gain affects your AU ring size — plus when to resize, temporary fix tips, and what Belconnen jewellers can do.