Ring Size Guide
RING SIZE
HOW TO MEASURE A RING
You'll need a ring and a ruler.
1. Select a ring that fits the desired finger
2. Measure inside of the ring, horizontally across the widest part, from side to side (in mm). This will give you the ring diameter.
3. Use the conversion chart to find your size.
2. Measure inside of the ring, horizontally across the widest part, from side to side (in mm). This will give you the ring diameter.
3. Use the conversion chart to find your size.
| Inner Diameter (mm) |
Circumference (mm) |
HK/CH | KR/JP | US/CA | UK/AU |
| 14.9 | 4.68 | 9 | 7 | 4 | H |
| 15.3 | 4.80 | 10 | 8 | 4.5 | I |
| 15.7 | 4.93 | 11 | 9 | 5 | J 1/2 |
| 16.1 | 5.05 | 12 | 10 | 5.5 | K 1/2 |
| 16.5 | 5.18 | 13 | 11 | 6 | L 1/2 |
| 16.7 | 5.24 | 14 | 12 | 6.25 | M |
| 17.1 | 5.37 | 15 | 13.5 | 6.75 | N |
| 17.3 | 5.43 | 16 | 14 | 7 | N 1/2 |
| 17.7 | 5.56 | 17 | 15 | 7.5 | O 1/2 |
| 18.2 | 5.71 | 18 | 16.25 | 8 | P 1/2 |
HOW TO MEASURE YOUR FINGER
You'll need scissors, paper, a pen and a ruler.
1. Wrap an evenly cut strip of paper around the base of your finger you want to measure.
2. Pull the paper so it’s snug against your skin to ensure a proper fit.
3. Mark where the paper meets.
4. Measure the distance with a ruler (in mm) for your fingers' circumference.
5. Use the conversion chart to find your size.
6. If your knuckle is larger than the base of your finger, repeat the process around your knuckle, ensuring you measure it tightly. Compare the two sizes and consider sizing up to fit the ring over your knuckles.
2. Pull the paper so it’s snug against your skin to ensure a proper fit.
3. Mark where the paper meets.
4. Measure the distance with a ruler (in mm) for your fingers' circumference.
5. Use the conversion chart to find your size.
6. If your knuckle is larger than the base of your finger, repeat the process around your knuckle, ensuring you measure it tightly. Compare the two sizes and consider sizing up to fit the ring over your knuckles.