US to Turkey Ring Size

Enter a US size to find its Turkish size number, or check the reference table below — essential when purchasing jewelry in Turkey or Grand Bazaar.

Need to convert in reverse? Go to Turkey to US Ring Size Converter →

Common US to Turkey equivalents

These examples share the same inner diameter. Use the calculator for another size or an in-between measurement.

US 5 corresponds to Turkey 9.32 at 15.7 mm.
US 7 corresponds to Turkey 14.41 at 17.32 mm.
US 9 corresponds to Turkey 19.53 at 18.95 mm.

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Numeric size (e.g. 8) for US/Canada, EU, or Japan — or a letter size (e.g. P 1/2) for UK/Australia.

Converting US sizes to Turkish ring size numbers

Turkish ring sizing equals the inner circumference in millimeters minus 40. US sizes use an independent diameter scale. A US size 6 (16.5 mm diameter, 51.9 mm circumference) corresponds to Turkish size 12. A US size 7 corresponds to Turkish size 14, and US size 8 corresponds to Turkish size 17.

US to Turkey reference table

US to Turkey ring size conversion
US / CanadaUS, CA, MX	TurkeyTR	Diameter (mm)
US / CanadaUS, CA, MX3	TurkeyTR4.2	Diameter (mm)14.07
US / CanadaUS, CA, MX3.5	TurkeyTR5.49	Diameter (mm)14.48
US / CanadaUS, CA, MX4	TurkeyTR6.75	Diameter (mm)14.88
US / CanadaUS, CA, MX4.5	TurkeyTR8.03	Diameter (mm)15.29
US / CanadaUS, CA, MX5	TurkeyTR9.32	Diameter (mm)15.7
US / CanadaUS, CA, MX5.5	TurkeyTR10.58	Diameter (mm)16.1
US / CanadaUS, CA, MX6	TurkeyTR11.87	Diameter (mm)16.51
US / CanadaUS, CA, MX6.5	TurkeyTR13.16	Diameter (mm)16.92
US / CanadaUS, CA, MX7	TurkeyTR14.41	Diameter (mm)17.32
US / CanadaUS, CA, MX7.5	TurkeyTR15.7	Diameter (mm)17.73
US / CanadaUS, CA, MX8	TurkeyTR16.99	Diameter (mm)18.14
US / CanadaUS, CA, MX8.5	TurkeyTR18.25	Diameter (mm)18.54
US / CanadaUS, CA, MX9	TurkeyTR19.53	Diameter (mm)18.95
US / CanadaUS, CA, MX9.5	TurkeyTR20.79	Diameter (mm)19.35
US / CanadaUS, CA, MX10	TurkeyTR22.08	Diameter (mm)19.76
US / CanadaUS, CA, MX10.5	TurkeyTR23.37	Diameter (mm)20.17
US / CanadaUS, CA, MX11	TurkeyTR24.62	Diameter (mm)20.57
US / CanadaUS, CA, MX11.5	TurkeyTR25.91	Diameter (mm)20.98
US / CanadaUS, CA, MX12	TurkeyTR27.2	Diameter (mm)21.39
US / CanadaUS, CA, MX12.5	TurkeyTR28.46	Diameter (mm)21.79
US / CanadaUS, CA, MX13	TurkeyTR29.74	Diameter (mm)22.2