Choosing the right ring size is essential for both comfort and style. Whether you’re purchasing an engagement ring, wedding band, or a stylish accessory, our guide makes it easy to find your ideal fit at home.
These the chart below to find your ring size based on the inner diameter or circumference of your finger or an existing ring. Measurements are shown in millimeters (mm).
US Size | UK Size | EU Size | Inner Diameter (mm) | Circumference (mm) |
---|---|---|---|---|
3 | F | 44 | 14.1 | 44.2 |
4 | H | 46.5 | 14.9 | 46.8 |
5 | J½ | 49 | 15.7 | 49.3 |
6 | L½ | 51.5 | 16.5 | 51.8 |
7 | N½ | 54 | 17.3 | 54.4 |
8 | P½ | 56.5 | 18.1 | 57.0 |
9 | R½ | 59 | 19.0 | 59.5 |
10 | T½ | 62 | 19.8 | 62.1 |
11 | V½ | 64.5 | 20.6 | 64.6 |
12 | Y | 67.5 | 21.4 | 67.2 |
13 | Z½ | 70 | 22.2 | 69.7 |
Don’t know your size? No worries! Here are three simple methods you can try with everyday tools.
Tools Needed: String or thin strip of paper, pen, ruler
Steps:
Wrap the string or paper around the base of your finger.
Mark the point where the ends meet.
Lay it flat and measure the length in millimeters (mm).
Compare the measurement with the circumference column in the chart above.
Tips:
Don’t pull too tightly—make sure it fits snug but not tight.
Measure at the end of the day when your fingers are naturally larger.
Tools Needed: A printable ring sizer from a trusted source, scissors
Steps:
Download and print the ring sizer at 100% scale.
Cut along the guide and use the sizer according to the instructions.
Slide the sizer onto your finger until it fits comfortably.
Read the indicated ring size.
Tips:
Check the scale on the printout with a ruler to ensure it’s accurate.
Try measuring a few times to confirm consistency.
Tools Needed: A ring you already wear comfortably, a ruler or caliper
Steps:
Place the ring on a flat surface.
Measure the inner diameter in millimeters.
Use the inner diameter column in the size chart above to find your size.
Tips:
Be sure to measure from inner edge to inner edge.
This method works best with simple, non-thick band rings.
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