Ring Size Guide
Find your perfect fit with our comprehensive sizing guide
Important Note
For the most accurate sizing, we recommend visiting a local jeweler for a professional measurement. Ring sizes can vary between jewelers, and factors like ring width and style can affect fit.
How to Measure Your Ring Size at Home
Method 1: Measure an Existing Ring
- 1Find a ring that fits the intended finger well
- 2Place the ring on a ruler
- 3Measure the inside diameter in millimeters
- 4Use the chart below to find your size
Method 2: String or Paper Method
- 1Wrap a thin strip of paper or string around the finger
- 2Mark where the paper/string overlaps
- 3Measure the length in millimeters
- 4This is your circumference — find your size below
Tips for Accurate Measurement
- Measure at the end of the day when fingers are largest
- Avoid measuring when hands are cold (fingers shrink)
- Measure multiple times for consistency
- Consider the ring width — wider bands often need a larger size
- Your dominant hand is usually slightly larger
Ring Size Conversion Chart
| US Size | UK Size | EU Size | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|
| 3 | F | 44 | 14.0 | 44.0 |
| 3.5 | G | 45 | 14.4 | 45.2 |
| 4 | H | 46.5 | 14.8 | 46.5 |
| 4.5 | I | 48 | 15.2 | 47.8 |
| 5 | J | 49 | 15.6 | 49.0 |
| 5.5 | K | 50 | 16.0 | 50.3 |
| 6 | L | 51.5 | 16.5 | 51.8 |
| 6.5 | M | 53 | 16.9 | 53.1 |
| 7 | N | 54 | 17.3 | 54.4 |
| 7.5 | O | 55.5 | 17.7 | 55.6 |
| 8 | P | 57 | 18.1 | 56.9 |
| 8.5 | Q | 58 | 18.5 | 58.2 |
| 9 | R | 59.5 | 18.9 | 59.4 |
| 9.5 | S | 61 | 19.4 | 60.9 |
| 10 | T | 62 | 19.8 | 62.2 |
Average Ring Sizes
Women’s Engagement Rings
The most common women’s ring sizes are between 5–7, with size 6 being the most popular.
Men’s Wedding Bands
The most common men’s ring sizes are between 8–10.5, with size 9 being the average.
Still Unsure?
Most jewelers offer free ring sizing and will help you find the perfect fit. Many also offer resizing services after purchase.