US 4.5 to EU Ring Size
Conversion
US 4.5 = EU 48
Inner circumference ≈ 48 mm · diameter ≈ 15.3 mm.
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Full conversion chart
| Región | Talla |
|---|---|
| US | 4.5 |
| UK | I |
| EU | 48 |
| France | 48 |
| Japan | 8 |
About this conversion
A US 4.5 ring converts to a EU 48. Inner circumference ≈ 48 mm · diameter ≈ 15.3 mm. Ring sizes all describe one physical measurement — the inner circumference of the band — that each country labels differently.
To check at home, measure the inside diameter of a ring that already fits and compare it to the millimetre figure above.