Ring Size Guide & International Ring Size Conversion Chart
Not sure of your ring size? We've got you covered. Use our free printable Ring Sizing Guide or order a physical Ring Sizer shipped straight to your door.
How to find your ring size using our printable guide
- Download the Ring Sizing Guide (PDF)
- Print at 100% or actual size — this is the most important step. Do not scale to fit the page.
- Match the inside of your ring to the nearest circle on the guide. The measurements refer to the inside diameter of the ring.
- If your ring falls between two sizes, order the larger size.
Prefer a physical ring sizer? Order our Ring Sizer with free shipping.
Ring sizing tips
- Ring bands 6mm and wider tend to fit more tightly — don't worry if a larger size is recommended.
- When in doubt, visit your local jewelry counter for an accurate sizing.
- Most of our rings can be sized up or down by at least two sizes.
- Some rings with unique designs throughout the band are not available in larger sizes. We do our best to offer these in a variety of sizes.
Don't see your size? Contact our jewelry experts — they'll help you order the right size.
- Call or text: (808) 946-2929
- Email: customerservice@mauidivers.com
- Chat online: Monday–Friday, 8 AM–4:45 PM HST
International ring size conversion chart
All Maui Divers Jewelry rings are sized using U.S. and Canadian ring sizes. Use the chart below to find your equivalent size. For the most accurate conversion, we recommend visiting a local jeweler to confirm your size before ordering.
| U.S. & Canada | U.K., Europe & Australia | Switzerland | Asia (Hong Kong, China, Singapore, Taiwan, Japan) |
|---|---|---|---|
| 3 | F | 4 | 4 |
| 3.25 | F.5 | 5.25 | 5 |
| 3.5 | G | ||
| 3.75 | G.5 | 6.5 | 6 |
| 4 | H | 7 | |
| 4.25 | H.5 | 7.75 | |
| 4.5 | I | 8 | |
| 4.75 | I.5 | 9 | |
| 5 | J | 9 | |
| 5.25 | J.5 | 10 | |
| 5.5 | K | 10 | |
| 5.75 | K.5 | 11.75 | |
| 6 | L | 12.75 | 11 |
| 6.25 | L.5 | 12 | |
| 6.5 | M | 14 | 13 |
| 6.75 | M.5 | ||
| 7 | N | 15.25 | 14 |
| 7.25 | N.5 | ||
| 7.5 | O | 16.5 | 15 |
| 7.75 | O.5 | ||
| 8 | P | 17.75 | 16 |
| 8.25 | P.5 | ||
| 8.5 | Q | 17 | |
| 8.75 | Q.5 | 19 | |
| 9 | R | 18 | |
| 9.25 | R.5 | 20.25 | |
| 9.5 | S | 19 | |
| 9.75 | S.5 | 21.5 | |
| 10 | T | 20 | |
| 10.25 | T.5 | 21 | |
| 10.5 | U | 22.75 | 22 |
| 10.75 | U.5 | ||
| 11 | V | 23 | |
| 11.25 | V.5 | 25 | |
| 11.5 | W | 24 | |
| 11.75 | W.5 | ||
| 12 | X | 27.5 | 25 |
| 12.25 | X.5 | ||
| 12.5 | Y | 28.75 | 26 |
| 12.75 | Z | ||
| 13 | Z.5 | 27 | |
| 13.25 | |||
| 13.5 | Z1 |