Ring Size Chart & Guide

Welcome to our comprehensive Ring Size Guide!

Ensuring your ring fits perfectly is crucial, and we’re here to help you find your ideal size. Whether you’re shopping for yourself or planning a surprise, our guide will provide you with everything you need to know about ring sizing in Australia.

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How to Measure Your Ring Size from Home

Get Your Free Ring Sizer
Accurately measuring your finger size is essential for finding the perfect ring fit. While we recommend having your ring sized in person at our store, we understand that this isn’t always possible. That’s why Moi Moi offers a free ring sizer to measure your ring size accurately from the comfort of your home. Our ring sizer is easy to use and ensures you get the perfect fit.

How to use the Ring Sizer:
The most accurate method to measure your ring from home, is using a ring sizer tool. Request our FREE DIY Ring Sizer by filling out the form below.

  1. Form the Ring Shape:
    Follow the simple instructions included to shape the sizer into a ring.
  2. Adjust for Comfort:
    Slip on the ring sizer and adjust it until it fits comfortably on your finger.
  3. Check Over the Knuckle:
    Ensure it slides back over your knuckle with slight resistance.
  4. Read Your Size:
    The arrow on the ring sizer will indicate your accurate ring size.
Free_Ring_Sizer_Form_Db

Request Your FREE DIY Ring Sizer

To ensure the perfect fit, we offer a free DIY ring sizer.
Fill out the form below with your name and address, and we’ll send it to you.
*Australian Customers Only

  • We value your privacy and will never share your information with anybody else.
  • PRIVACY POLICY

How to Measure a Ring for a Surprise

If you’re planning a surprise, here are a few tips:

Send us a photo
Our expert team have years of experience guessing ring sizes. Simply send us a photo of the person, with hands in the frame (perhaps their holding a phone for a selfie, or a drink), and we’ll do our best to guesstimate their ring size.

Measuring a Ring You Already Own:
Whilst not so accurate, but a decent estimate, if you can borrow a ring that fits the recipient well, measure the inside diameter and use the ring size chart below to find the corresponding size.

International Ring Size Chart

Ring Size Chart
Australia & UK Internal Diameter (mm) Internal Circumference (mm) USA & Canada China & Japan
F 14.1 44.2 3 4
F 1/2 14.3 44.8 3 1/4 5
G 14.5 45.5 3 1/2
G 1/2 14.7 46.1 3 3/4 6
H 14.9 46.8 4 7
H 1/2 15.1 47.4 4 1/4
I 15.3 48 4 1/2 8
J 15.5 48.7 4 3/4
J 1/2 15.7 49.3 5 9
K 15.9 50 5 1/4
K 1/2 16.1 50.6 5 1/2 10
L 16.3 51.2 5 3/4
L 1/2 16.5 51.9 6 11
M 16.7 52.5 6 1/4 12
M 1/2 16.9 53.1 6 1/2 13
N 17.1 53.8 6 3/4
N 1/2 17.3 54.4 7 14
O 17.5 55.1 7 1/4
O 1/2 17.7 55.7 7 1/2 15
P 17.9 56.3 7 3/4
P 1/2 18.1 57 8 16
Q 18.3 57.6 8 1/4
Q 1/2 18.5 58.3 8 1/2 17
R 18.8 58.9 8 3/4
R 1/2 19 59.5 9 18
S 19.2 60.2 9 1/4
S 1/2 19.4 60.8 9 1/2 19
T 19.6 61.4 9 3/4
T 1/2 19.8 62.1 10 20
U 20 62.7 10 1/4 21
U 1/2 20.2 63.4 10 1/2 22
V 20.4 64 10 3/4
V 1/2 20.6 64.6 11 23
W 20.8 65.3 11 1/4
W 1/2 21 65.9 11 1/2 24
X 21.2 66.6 11 3/4
X 1/2 21.4 67.2 12 25
Y 21.6 67.8 12 1/4
Z 21.8 68.5 12 1/2 26
Z 1/2 22 69.1 12 3/4
22.2 69.7 13 27
Z + 1 22.4 70.4 13 1/4

Additional Ring Sizing Tips

  1. Measure at the Right Time:
    Measure your finger size at the end of the day when your fingers are warm. Finger size can vary throughout the day and with temperature changes.
  2. Consider Knuckle Size:
    If your knuckle is larger than the base of your finger, measure both and choose a size in between the two. The ring should fit over your knuckle but not be too loose once it’s on.
  3. Width of the Band, or Wearing more than 1 Ring:
    Keep in mind that wider bands fit more snugly than thinner bands. You might need to go up a half size for wider bands. This is the same for wearing 2-3 rings stacked together. Whilst your engagement ring may fit nicely now, adding a wedding and eternity band, may make them all feel a little tight.
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What Not to Do: Ring Sizing Mistakes

Measuring with a String and Ruler:
Using a string and ruler might seem easy, but it’s not always accurate.
A string is flexible and can stretch, giving you an incorrect measurement.
Additionally, it doesn’t account for the width and thickness of a real ring, nor does it take into consideration the need to fit over the knuckle.

Measuring Against an Existing Ring:
Avoid measuring a ring that isn’t worn on the same finger.
Finger sizes vary, so a ring that fits one finger might not fit another.
Also, ensure the ring is perfectly round; otherwise, you’ll get an inaccurate measurement.

Using a Paper Strip:
Similar to a string, a paper strip can provide an inaccurate measurement.
Paper can bend and fold, resulting in a size that doesn’t accurately reflect your finger’s circumference.

Relying on Old Measurements:
Finger sizes can change over time due to weight fluctuations, temperature, and other factors. Always measure your ring size anew rather than relying on old measurements.

Measuring in Extreme Temperatures:
Don’t measure your finger size when your hands are very cold or very hot. This can affect the accuracy of the measurement.

Ensure the Perfect Ring Size Fit

The most accurate way of course is to get measured by our team at one of our stores, a free service for all Moi Moi orders.

Sydney Store

Sydney Store

Book a pick up for Sydney

Melbourne Store

Book a pick up for Melbourne

Frequently asked Questions (FAQ’s)

How do I measure my ring size at home?

You can measure your ring size at home using a string or paper strip. Wrap it around your finger, mark where it overlaps, measure the length, and compare it to our size chart.

Are Australian ring sizes the same as US sizes?

No, Australian ring sizes are different from US sizes. Use our size chart to convert between the two.

What is the most common ring size for women in Australia?

The most common ring sizes for women in Australia are between K - N.

How can I measure my partner’s ring size for a surprise?

You can borrow a ring that fits them well and measure its inside diameter, or ask someone close to them to help you find out their size discreetly. Alternatively, send us a photo so we can estimate for you!

Can I get a free ring sizer?

Yes! Fill out the form here to request your FREE DIY Ring Sizer.

How tight should a ring be?

A ring should fit snugly on your finger without being too tight. It should be able to slide over your knuckle with a little resistance.

Can I resize a ring if it doesn’t fit perfectly?

Yes, most rings can be resized by a jeweller. Contact us for more information on our resizing services.

Does finger size change over time?

Yes, finger size can change due to factors like temperature, weight fluctuations, and aging.

How do I measure my ring size for a wide band?

For wide bands, it’s often recommended to go up half a size for a more comfortable fit. Contact Us If you have any further questions or need assistance, don’t hesitate to reach out to us. We’re here to help you find the perfect fit. Thank you for visiting our Ring Size Guide. For any further assistance, feel free to contact us. Happy shopping!