Ring Sizer
Find your perfect fit
Measure an Existing Ring
Select an existing ring that fits the desired finger.
Measure the internal diameter of the ring (in mm).
Use the below chart to determine your ring size.
| INTERNAL DIAMETER (MM) | US/CAN RING SIZE | UK/AUS RING SIZE | GERMAN RING SIZE |
|---|---|---|---|
| 14.1 | 3 | F | 14 |
| 14.9 | 4 | H 1/2 | 15 |
| 15.7 | 5 | J 1/2 | 15 3/4 |
| 16.5 | 6 | L 1/2 | 16 1/2 |
| 17.3 | 7 | O | 17 1/4 |
| 18.1 | 8 | Q | 18 |
| 19 | 9 | S | 19 |
| 19.8 | 10 | U | 19 3/4 |
| 20.6 | 11 | W | 20 1/2 |
| 21.4 | 12 | Y | 21 1/2 |
Measure Your Finger
Wrap a strip of paper around your finger where you’d like your ring to be.
Make sure that the paper is pulled snug to your finger, the tighter the better, to find your best fit.
Mark the spot where the paper meets and measure the distance with a ruler (mm).
Use the below chart to determine your ring size.
| Circumference (mm) | US/CAN Ring Size | UK/AUS Ring Size | German Ring Size |
|---|---|---|---|
| 44.2 | 3 | F | 14 |
| 46.8 | 4 | H 1/2 | 15 |
| 49.3 | 5 | J 1/2 | 15 3/4 |
| 51.9 | 6 | L 1/2 | 16 1/2 |
| 54.4 | 7 | O | 17 1/4 |
| 57.0 | 8 | Q | 18 |
| 59.5 | 9 | S | 19 |
| 62.1 | 10 | U | 19 3/4 |
| 64.6 | 11 | W | 20 1/2 |
| 67.2 | 12 | Y | 21 1/2 |
Tips & Tricks
Measure your fingers at the end of the day when they’re at their largest.
Cold weather can shrink your fingers up to half a size, so make sure they’re warm.
Lastly, alcohol and salt can make your fingers swell, so refrain from measuring them after cocktails and appetizers.
Still Unsure?
Our Customer Happiness team can help with any other questions you have about finding your best fit. Reach out to us here.