Conversion
Japan 23 = US 11
Inner circumference ≈ 64.6 mm · diameter ≈ 20.6 mm.
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Full conversion chart

RegionGröße
US11
UKV
EU65
France65
Japan23

About this conversion

A Japan 23 ring converts to a US 11. Inner circumference ≈ 64.6 mm · diameter ≈ 20.6 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.