Ring Size Guide
Find Your Perfect Fit
Getting your ring size right is the most important step before ordering. A smart ring needs to sit snugly — not so tight it cuts circulation, not so loose it spins freely. We recommend measuring in the evening when fingers are slightly larger.
Option 1: Order a Sizing Kit
Not sure about your size? Order our ring sizing kit and we'll send you a set of sizer rings to try at home before committing to your Benio ring.
Option 2: Measure at Home
Method A — Circumference
- Wrap a thin strip of paper or string around the base of your finger
- Mark where it overlaps and measure the length in mm
- Match your measurement to the circumference column below
Method B — Diameter
- If you already own a ring that fits well, measure across the inside of the band in mm
- Match your measurement to the diameter column below
Size Chart (all measurements in mm)
| Benio Size | Diameter (mm) | Circumference (mm) | US Size | EU Size |
|---|---|---|---|---|
| #6 | 16.50 | 51.84 | 6 | 52 |
| #7 | 17.28 | 54.30 | 7 | 54 |
| #8 | 18.11 | 56.90 | 8 | 57 |
| #9 | 18.94 | 59.50 | 9 | 60 |
| #10 | 19.77 | 62.10 | 10 | 62 |
| #11 | 20.56 | 64.60 | 11 | 65 |
| #12 | 21.40 | 67.20 | 12 | 67 |
| #13 | 22.20 | 69.70 | 13 | 70 |
Tips for the Best Fit
- Measure your dominant hand — fingers are usually slightly larger on that side
- Measure in the evening, not the morning
- If between sizes, size up
- Your ring should slide over the knuckle with slight resistance, then sit snugly at the base
Still unsure?
Email us at hello@benio.com.hk and we'll help you find your perfect size.