Ring Size Measurement Chart & Ring Sizing Guide (Canada)
Ensuring a Perfect Fit
Finding the perfect style of ring is one thing. Making sure it fits properly is another.
If you’re struggling to find the perfect fitting ring for you or your sweetheart, there are a few options to make it easier.
This guide will walk you through standard Canadian ring sizing, how it compares to US and EU sizing, average ring sizes, and the most accurate ways to measure both at home, and with help from Malleable.
Ring Size Measurement & Conversion Chart
Ring sizes are typically measured in one of two ways: by the internal circumference of the ring (in millimetres) or by the internal diameter.
In Canada, ring sizes follow the same numerical scale used in the US, making it easy to compare across most North American retailers.
Use the chart below to find your ring size based on circumference or diameter measurement.
View Full Ring Size Conversion Chart
| Circumference (mm) Europe / ISO |
Diameter (mm) | USA / Canada | UK / Australia | Asia | Switzerland |
|---|---|---|---|---|---|
| 44.2 | 14.1 | 3 | F | 4 | 4 |
| 44.8 | 14.3 | F-1/2 | 5 | ||
| 45.5 | 14.5 | 3 1/2 | G | 5 1/4 | |
| 46.1 | 14.7 | G-1/2 | 6 | ||
| 46.8 | 14.9 | 4 | H | 7 | 6 1/2 |
| 47.4 | 15.1 | H-1/2 | 7 3/4 | ||
| 48 | 15.3 | 4 1/2 | I | 8 | |
| 48.7 | 15.5 | J | 9 | ||
| 49.3 | 15.7 | 5 | J-1/2 | 9 | |
| 50 | 15.9 | K | 10 | ||
| 50.6 | 16.1 | 5 1/2 | K-1/2 | 10 | |
| 51.2 | 16.3 | L | 11 3/4 | ||
| 51.9 | 16.5 | 6 | L-1/2 | 11 | 12 3/4 |
| 52.5 | 16.7 | M | 12 | ||
| 53.1 | 16.9 | 6 1/2 | M-1/2 | 13 | 14 |
| 53.8 | 17.1 | N | |||
| 54.4 | 17.3 | 7 | N-1/2 | 14 | 15 1/4 |
| 55.1 | 17.5 | O | |||
| 55.7 | 17.7 | 7 1/2 | O-1/2 | 15 | 16 1/2 |
| 56.3 | 17.9 | P | |||
| 57 | 18.1 | 8 | P-1/2 | 16 | 17 3/4 |
| 57.6 | 18.3 | Q | |||
| 58.3 | 18.5 | 8 1/2 | Q-1/2 | 17 | |
| 58.9 | 18.8 | R | 19 | ||
| 59.5 | 19 | 9 | R-1/2 | 18 | |
| 60.2 | 19.2 | S | 20 1/4 | ||
| 60.8 | 19.4 | 9 1/2 | S-1/2 | 19 | |
| 61.4 | 19.6 | T | 21 1/2 | ||
| 62.1 | 19.8 | 10 | T-1/2 | 20 | |
| 62.7 | 20 | U | 21 | ||
| 63.4 | 20.2 | 10 1/2 | U-1/2 | 22 | 22 3/4 |
| 64 | 20.4 | V | |||
| 64.6 | 20.6 | 11 | V-1/2 | 23 | |
| 65.3 | 20.8 | W | 25 | ||
| 65.9 | 21 | 11 1/2 | W-1/2 | 24 | |
| 66.6 | 21.2 | X | |||
| 67.2 | 21.4 | 12 | X-1/2 | 25 | 27 1/2 |
| 67.8 | 21.6 | Y | |||
| 68.5 | 21.8 | 12 1/2 | Z | 26 | 28 3/4 |
| 69.1 | 22 | Z-1/2 | |||
| 69.7 | 22.2 | 13 | Z + 1 | 27 | |
| 70.4 | 22.4 | ||||
| 71 | 22.6 | 13 1/2 |
Average Ring Sizes
If you don’t happen to have an already-fitting ring to measure and compare, knowing average ring size data can be a helpful starting point, however we always recommend confirming with an actual measurement before purchasing.
Average Women’s Ring Size
Most women's rings fall between size 5 and 7, with 6 being the most common in Canada.
Average Men’s Ring Size
Most men’s rings fall between size 8 and 10.5, with 9 being the most common.
Common Engagement Ring Size Range
Engagement rings most frequently fall between size 5 and 6.5.
Of course, these are only general population averages, and they can’t replace actual individual finger measurement.
Want the most accurate ring fit?
Our physical ring sizer takes the guesswork out of at-home measuring and helps ensure your ring fits perfectly the first time.
Measuring Your Ring Size At-Home
While we do recommend using the above methods to measure accurately, you can get a reliable estimate of your ring size at home using a few simple methods:
1. String/Paper Method
Wrap a string or thin piece of paper around the base of your finger, marking where it overlaps. Then, measure the length in millimetres and compare it to the circumference column in our chart above. Some description
2. Compare Against Another Ring
Measure the inside diameter of a ring that already fits well and match it to the diameter column in the chart above.
3. Free Ring Sizer
Order your free ring sizer to get the most accurate fit.
For best results, measure at the end of the day, avoid measuring when your hands are cold, and measure the finger you'll actually wear the ring on (finger size varies hand to hand and finger to finger).
Need more guidance? Read our full at-home ring sizing guide.
Ready for a Ring That Actually Fits?
If your ring is too tight, too loose, or if you’ve measured and you’re still not sure, our team can help. Malleable’s professional ring resizing service adjusts your ring in-house, so it fits and looks exactly as it should.
Book a consultation and we’ll organize a date to take a precise, in-person measurement at our downtown Toronto studio.
FAQs About Ring Sizing
How do I subtly find out someone else's ring size?
A few discreet options: borrow a ring they already wear on the correct finger and trace or measure it while they're not wearing it, ask a close friend or family member of theirs for help, or pay attention to whether they've mentioned their size in the past.
Remember that if you do buy a Malleable ring, each purchase comes with a free resizing.
Are Canadian ring sizes the same as US or EU sizes?
Canadian ring sizes use the same numerical scale as US ring sizes, so a size 7 in Canada is the same as a size 7 in the US. EU and UK sizing use different scales entirely, so if you're comparing sizes internationally, it's best to convert using millimetre measurements rather than assuming size numbers align.
How tight should a ring fit?
A properly fitted ring should pass over your knuckle with gentle resistance and then sit comfortably without sliding around or leaving an indentation. If you have to force it over your knuckle or it spins freely once on, it's likely the wrong size.
Is it better for a ring to be tight or loose?
Neither extreme is ideal. A ring that's too loose risks falling off or spinning on the finger, while a ring that's too tight can restrict circulation and be difficult to remove. Aim for a fit that requires light resistance over the knuckle but sits comfortably once on.
Can Malleable help me resize an existing ring that no longer fits me?
Absolutely. Schedule an in-person design consultation to chat about Malleable’s professional ring resizing services in our studio at 2140 Dundas West.