Ring Size Guide – How to Measure Your Ring Size Accurately
Ring Size Guide
How to Measure Your Perfect Fit
( Illustration for guidance only. Measure in millimetres for best accuracy.)
1. Measure your current ring
-Take a ring that fits the intended finger perfectly.
-Measure the inner diameter (millimetres).
-Use the table below to find the corresponding US ring size.
| Inside Diameter (mm) | US Size |
|---|---|
| 14.1 mm | 3 |
| 14.5 mm | 3.5 |
| 14.9 mm | 4 |
| 15.3 mm | 4.5 |
| 15.7 mm | 5 |
| 16.1 mm | 5.5 |
| 16.5 mm | 6 |
| 16.9 mm | 6.5 |
| 17.3 mm | 7 |
| 17.7 mm | 7.5 |
| 18.1 mm | 8 |
| 18.5 mm | 8.5 |
| 19.0 mm | 9 |
| 19.4 mm | 9.5 |
| 19.8 mm | 10 |
| 20.2 mm | 10.5 |
| 20.6 mm | 11 |
| 21.0 mm | 11.5 |
| 21.4 mm | 12 |
| 21.8 mm | 12.5 |
| 22.2 mm | 13 |
2. Measure with a string (if you don’t have a ring)
1-Wrap a thin string or strip of paper around the base of your finger.
2-Mark where it overlaps.
3-Measure that length with a ruler — this is your finger circumference.
1-Divide the circumference by 3.14 (π) to get the diameter, then find your size in the table.
3. Tips for Accurate Measurement
- Measure your finger at the end of the day, when it’s slightly larger.
- Avoid measuring when your hands are cold; fingers shrink.
- If you’re between two sizes, choose the larger one.
- Wide rings fit tighter — go half size up for very thick bands.
- For engraved or custom rings, double-check before confirming — they’re not resizable.
4. Still Unsure?
We can help!
Send us your current ring’s photo (next to a ruler) via email or WhatsApp, and our team will estimate the correct size before production.