- Take an existing ring that fits the desired finger.
- Measure its internal diameter (in mm) by placing a ruler ACROSS THE CENTER of the ring.
- Use the ring size chart below to determine your ring size.

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The average ring size for Bangladeshi women is 7, and for men, it is 9. You can choose one size larger or smaller depending on whether your fingers are thinner or thicker than average.
Alternatively, you may opt for adjustable rings, which offer a higher chance of a perfect fit without the need for manual measurements.
Regardless of the method you choose, you can shop with peace of mind because at Simplicy we offer a hassle-free 2-day exchange window if you experience any fit issues or if the design isn’t quite what you expected.
| Internal diameter (mm/cm) | Circumference (mm/cm) | Ring Size (Simplicy/US) |
|---|---|---|
| 15.7 mm / 1.57 cm | 49 mm / 4.9 cm | 5 |
| 16.5 mm / 1.65 cm | 52 mm / 5.2 cm | 6 |
| 17.3 mm / 1.73 cm | 55 mm / 5.5 cm | 7 |
| 18.1 mm / 1.81 cm | 57 mm / 5.7 cm | 8 |
| 18.9 mm / 1.89 cm | 59 mm / 5.9 cm | 9 |
| 19.8 mm / 1.98 cm | 62 mm / 6.2 cm | 10 |
| 20.6 mm / 2.06 cm | 65 mm / 6.5 cm | 11 |
| 21.4 mm / 2.14 cm | 67 mm / 6.7 cm | 12 |