Finding the perfect ring size is important for comfort and security. Here are several methods you can use at home:
Method 1: Measure an Existing Ring
- Select a ring that fits comfortably on the intended finger.
- Place the ring on a flat surface.
- Measure the inside diameter (the widest point from inner edge to inner edge) in millimeters.
- Use the conversion chart below to find your ring size.
Method 2: Paper Strip Method
- Cut a thin strip of paper or use a piece of non-stretchy string.
- Wrap it snugly around the base of the intended finger (not too tight — the ring should slide over your knuckle).
- Mark where the strip overlaps.
- Measure the length from the end to the mark in millimeters. This is the circumference.
- Use the chart below to convert to your ring size.
Ring Size Chart
| Inner Diameter (mm) | Circumference (mm) | US Size | EU Size |
|---|---|---|---|
| 15.3 | 48.0 | 4.5 | 48 |
| 15.7 | 49.3 | 5 | 49 |
| 16.1 | 50.6 | 5.5 | 50 |
| 16.5 | 51.8 | 6 | 52 |
| 16.9 | 53.1 | 6.5 | 53 |
| 17.3 | 54.4 | 7 | 54 |
| 17.7 | 55.7 | 7.5 | 56 |
| 18.2 | 57.0 | 8 | 57 |
| 18.6 | 58.3 | 8.5 | 58 |
| 19.0 | 59.5 | 9 | 60 |
| 19.4 | 60.8 | 9.5 | 61 |
| 19.8 | 62.1 | 10 | 62 |
Tips for Accurate Measurement
- Measure at the end of the day when your fingers are at their largest.
- Avoid measuring when your hands are very cold (fingers shrink) or very hot (fingers expand).
- If your knuckle is significantly larger than the base of your finger, measure both and choose a size in between.
- Wider band rings typically require a slightly larger size for comfort.