Ring Size Converter → Women's ring size chart
Women's ring size chart
The average women's ring size is about US 6–7 (UK L½–N½, EU 52–54), with size 6 the most common. Find the exact match by measuring or using the converter.
Women's sizes — full conversions
| US / CA | UK / AU | Europe | Japan | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|---|
| 3 | F | 44 | 4 | 14.1 | 44.2 |
| 3.5 | G | 45½ | 5 | 14.5 | 45.5 |
| 4 | H½ | 47 | 7 | 14.9 | 46.8 |
| 4.5 | I½ | 48 | 8 | 15.3 | 48.0 |
| 5 | J½ | 49 | 9 | 15.7 | 49.3 |
| 5.5 | K½ | 50½ | 10 | 16.1 | 50.6 |
| 6 | L½ | 52 | 11 | 16.5 | 51.9 |
| 6.5 | M½ | 53 | 12 | 16.9 | 53.1 |
| 7 | N½ | 54 | 13 | 17.3 | 54.4 |
| 7.5 | O½ | 55½ | 14 | 17.7 | 55.7 |
| 8 | P½ | 57 | 16 | 18.1 | 57.0 |
| 8.5 | Q½ | 58 | 17 | 18.5 | 58.3 |
| 9 | R½ | 59½ | 18 | 19.0 | 59.5 |
Frequently asked questions
What is the average women's ring size?
The average women's ring size is about US 6 to 7 (UK L½–N½, EU 52–54), with size 6 the single most common. Petite hands often run 4.5–5.5.
How do I measure a woman's ring size?
Measure the inside diameter of a ring she wears on that finger (about 15–18 mm for most women), or wrap a paper strip around the base of her finger and read the millimeters, then match it on the chart below.
What's the most common engagement ring size?
US 6 to 6.5 is the most common women's engagement-ring size. If you can't measure and have to guess, US 6 is the safest choice for an average adult woman.
How can I find her size without her knowing?
Borrow a ring she already wears on the ring finger and measure its inside diameter, or press it into a bar of soap for an imprint. You can also trace the inside on paper and compare it to the chart.