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Ring Size Guide: How to Find Your Ring Size at Home
The right fit makes a ring comfortable to wear every day. Here are three simple ways to find your size before you order.
Method 1: Measure a ring you already own
- Pick a ring that fits the finger you are buying for.
- Measure the inside diameter straight across, edge to edge, in millimeters.
- Find the closest match in the chart below.
Method 2: Measure your finger with string or paper
- Wrap a thin strip of paper or string around the base of your finger.
- Mark where it overlaps, then lay it flat and measure the length in millimeters. This is your circumference.
- Match it to the circumference column in the chart.
Method 3: Visit a jeweler
A jeweler can size you with professional ring sizers in a minute. This is the most accurate option, especially for wide bands.
US ring size chart
| US size | Inside diameter | Circumference |
|---|---|---|
| 3 | 14.0 mm | 44.2 mm |
| 3.5 | 14.4 mm | 45.5 mm |
| 4 | 14.8 mm | 46.8 mm |
| 4.5 | 15.2 mm | 48.0 mm |
| 5 | 15.7 mm | 49.3 mm |
| 5.5 | 16.1 mm | 50.6 mm |
| 6 | 16.5 mm | 51.9 mm |
| 6.5 | 16.9 mm | 53.1 mm |
| 7 | 17.3 mm | 54.4 mm |
| 7.5 | 17.7 mm | 55.7 mm |
| 8 | 18.1 mm | 57.0 mm |
| 8.5 | 18.5 mm | 58.3 mm |
| 9 | 19.0 mm | 59.5 mm |
| 9.5 | 19.4 mm | 60.8 mm |
| 10 | 19.8 mm | 62.1 mm |
| 10.5 | 20.2 mm | 63.4 mm |
| 11 | 20.6 mm | 64.6 mm |
| 11.5 | 21.0 mm | 65.9 mm |
| 12 | 21.4 mm | 67.2 mm |
| 12.5 | 21.8 mm | 68.5 mm |
| 13 | 22.2 mm | 69.7 mm |
Tips for an accurate size
- Measure at the end of the day, when fingers are slightly larger, and not when your hands are cold.
- If your knuckle is larger than the base of your finger, choose a size that slides over the knuckle.
- Wide bands (6 mm and up) fit tighter. Consider going up a quarter or half size.
- Between two sizes? Choose the larger one.
- Buying a surprise? Borrow a ring they wear on the same finger, or ask a close friend or family member.
Not sure about your size? Call or text us at (917) 841-3814 and we will help you find it.