Ring Size Calculator
Convert finger circumference or diameter to US, UK, and EU ring sizes.
US ring size
7
Dettaglio
- Inner diameter (mm)
- 17.20
- UK / Australia
- O
- EU (circumference mm)
- 54
Ultimo aggiornamento:
FAQ
How do I measure my ring size at home?
Wrap a strip of paper around the finger, mark the overlap, and measure the length in millimeters — that is your circumference.
Should I size up for wide bands?
Yes — bands wider than about 6 mm sit tighter, so add a half size to the measured size for comfort.
Why do my fingers change size during the day?
Fingers swell in heat and shrink in cold; measure in the evening at room temperature for the most reliable reading.
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