Ring Sizing Chart
Ring Sizing Guide
Finding the perfect ring size is essential for comfort and security. Use our comprehensive sizing guide to ensure your ring fits perfectly and feels comfortable all day long.
How to Measure Your Ring Size
Method 1: Measure an Existing Ring
- Find a ring that fits well on the intended finger
- Place the ring on a ruler and measure the inside diameter in millimeters
- Use our chart below to find your corresponding size
- Double-check by comparing with the circumference if possible
Method 2: Measure Your Finger
- Use a flexible measuring tape or a strip of paper
- Wrap it around the base of your intended finger (not over the knuckle)
- Mark where the tape/paper overlaps and ensure it's snug but not tight
- Measure the length in millimeters against a ruler
- Use the circumference column in our chart below
Complete Ring Size Chart
| US Size | UK Size | EU Size | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|
| 3 | F | 44 | 14.1 | 44.2 |
| 3.5 | G | 45 | 14.5 | 45.5 |
| 4 | H | 46 | 14.9 | 46.8 |
| 4.5 | I | 47 | 15.3 | 48.0 |
| 5 | J | 49 | 15.7 | 49.3 |
| 5.5 | K | 50 | 16.1 | 50.6 |
| 6 | L | 51 | 16.5 | 51.9 |
| 6.5 | M | 52 | 16.9 | 53.1 |
| 7 | N | 54 | 17.3 | 54.4 |
| 7.5 | O | 55 | 17.7 | 55.7 |
| 8 | P | 56 | 18.1 | 57.0 |
| 8.5 | Q | 57 | 18.5 | 58.3 |
| 9 | R | 59 | 18.9 | 59.5 |
| 9.5 | S | 60 | 19.4 | 60.8 |
| 10 | T | 61 | 19.8 | 62.1 |
| 10.5 | U | 62 | 20.2 | 63.4 |
| 11 | V | 64 | 20.6 | 64.6 |
| 11.5 | W | 65 | 21.0 | 65.9 |
| 12 | X | 66 | 21.4 | 67.2 |
Ring Style and Sizing Guide
Thin Bands (1-3mm)
Sizing: True to size
Why: Minimal contact with finger allows for precise fit
Medium Bands (4-6mm)
Sizing: True to size or +0.25 size
Why: Slight adjustment may be needed for all-day comfort
Wide Bands (7mm+)
Sizing: +0.5 to +1 size larger
Why: More surface area requires looser fit to slide over knuckle
Comfort Fit Rings
Sizing: -0.25 to -0.5 size smaller
Why: Rounded interior feels larger than standard flat interior
Eternity Bands
Sizing: +0.25 to +0.5 size larger
Why: Cannot be resized, so perfect fit is essential
Average Ring Sizes by Finger
| Finger | Women's Average | Men's Average | Most Popular For |
|---|---|---|---|
| Ring Finger | 6 - 6.5 | 9 - 10 | Engagement & Wedding |
| Middle Finger | 7 - 7.5 | 10 - 11 | Statement Rings |
| Index Finger | 6.5 - 7 | 9.5 - 10.5 | Class & Signet Rings |
| Pinky Finger | 4.5 - 5 | 7 - 8 | Pinky & Fashion Rings |
| Thumb | 7.5 - 8 | 10.5 - 11.5 | Thumb Rings |
Pro Tips for Perfect Fit
- Measure at the end of the day: Fingers are largest in the evening
- Consider temperature: Fingers swell in heat and shrink in cold
- Account for knuckle size: Ring must slide over your knuckle comfortably
- Test with string: Wrap string around finger, mark, and measure
- Different hands vary: Dominant hand is usually 0.5 size larger
- Pregnancy and weight changes: May affect ring size temporarily
Resizing Information
- Most rings can be resized: Up or down 1-2 sizes without compromising design
- Cannot be resized: Eternity bands, tungsten, titanium, ceramic rings
- Best candidates for resizing: Plain bands, rings with stones only on top
- When in doubt: Choose the larger size for comfort
Still Need Help?
The most popular and versatile ring size for women is 6-6.5, and for men is 9-10. When in doubt, these sizes are safe choices for gifts.
Professional sizing recommended for: Engagement rings, wedding bands, and expensive jewelry pieces.
Need personalized assistance? Contact our jewelry experts for professional sizing advice and personalized recommendations.