Japan 13 to EU Ring Size
Conversion
Japan 13 = EU 54
Inner circumference ≈ 54.4 mm · diameter ≈ 17.3 mm.
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Full conversion chart
| Region | Size |
|---|---|
| US | 7 |
| UK | N |
| EU | 54 |
| France | 54 |
| Japan | 13 |
About this conversion
A Japan 13 ring converts to a EU 54. Inner circumference ≈ 54.4 mm · diameter ≈ 17.3 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.