Conversion
US 6.5 = EU 53
Inner circumference ≈ 53.1 mm · diameter ≈ 16.9 mm.
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Full conversion chart

RegionSize
US6.5
UKM
EU53
France53
Japan12

About this conversion

A US 6.5 ring converts to a EU 53. Inner circumference ≈ 53.1 mm · diameter ≈ 16.9 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.