RingSize.net

Home Circumference Diameter Comparison Measurement Size Chart Size Converter History

Size Converter

Convert between different standards

1Select Size

Original Standard

Target Standard

Size

Diameter (mm)19.4 mm

Circumference (mm)60.9 mm

2Converted Sizes

China (CN)21

USA (US)9.50

United Kingdom (UK)21

Japan (JP)19.5

Europe (EU)61

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About

💍

RingSize.net

Your Professional Ring Sizing Tool

A professional online ring size measurement tool, helping you find the perfect ring size. Supports multiple measurement methods and international size conversion.

Precision Measurement

International Standards

Free to Use

Multilingual

Disclaimer: This tool is for reference only. For important purchases, please confirm your size at a physical store.

💍

RingSize.net

Home Circumference Diameter Comparison Measurement Size Chart Size Converter History

About

💍

RingSize.net

Your Professional Ring Sizing Tool

A professional online ring size measurement tool, helping you find the perfect ring size. Supports multiple measurement methods and international size conversion.

Precision Measurement

International Standards

Free to Use

Multilingual

Measurement

Home Circumference Diameter Comparison Measurement

Size Tools

Size Chart Size Converter History

Legal

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Disclaimer: This tool is for reference only. For important purchases, please confirm your size at a physical store.