▸US size 7 (UK N, EU 54) - a medium ring, the most common range for women.
- Your EU size is 54, which equals the inner circumference of the ring in millimetres (54.4 mm).
- Your German size (17) is simply the inner diameter in mm rounded to the nearest whole number.
- Fingers can swell in heat and shrink in cold; measure mid-day for the most representative result.
- Japanese and Chinese sizing (size 14) uses its own number series but maps closely to the same physical diameter.
Next stepIf your measurement falls between two sizes, size up for wide bands (over 6 mm) and size down for narrow bands; wide bands sit tighter on the finger.