Conversion
Japan 7 = France 47
Inner circumference ≈ 46.8 mm · diameter ≈ 14.9 mm.
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Full conversion chart

RegionSize
US4
UKH
EU47
France47
Japan7

About this conversion

A Japan 7 ring converts to a France 47. Inner circumference ≈ 46.8 mm · diameter ≈ 14.9 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.