US 3.5 to EU Ring Size
Conversion
US 3.5 = EU 45
Inner circumference ≈ 45.5 mm · diameter ≈ 14.5 mm.
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Full conversion chart
| Region | Size |
|---|---|
| US | 3.5 |
| UK | G |
| EU | 45 |
| France | 45 |
| Japan | 5 |
About this conversion
A US 3.5 ring converts to a EU 45. Inner circumference ≈ 45.5 mm · diameter ≈ 14.5 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.