Japan 25 to US Ring Size
Conversion
Japan 25 = US 12
Inner circumference ≈ 67.2 mm · diameter ≈ 21.4 mm.
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Full conversion chart
| Region | Size |
|---|---|
| US | 12 |
| UK | X |
| EU | 67 |
| France | 67 |
| Japan | 25 |
About this conversion
A Japan 25 ring converts to a US 12. Inner circumference ≈ 67.2 mm · diameter ≈ 21.4 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.