Ring Size Converter

Ring Size Converter

Convert ring sizes between US, UK, European, and millimeter measurement systems with comprehensive half-size support for accurate jewelry fitting

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size
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Common Ring Sizes
Popular ring sizes for instant reference
1Ring Size Conversion
Convert ring sizes between US, UK, European, and millimeter systems
Common Ring Size Reference
Typical ring size comparisons across different systems
SizeUSUKEUMM
Small5H4215.7
Medium7J4417.0
Large8.545.518.0
Extra Large10M4719.0

💫 Ring Size Tips

  • • Ring sizes can vary between brands and manufacturers
  • • Finger size can change throughout the day and with temperature
  • • Consider wider bands - they may require a larger size
  • • Left and right hands can have different ring sizes
  • • Professional sizing is recommended for important rings
  • • Account for the width of the ring when choosing size
Continue Your Size Conversion Journey
Popular next steps and related size conversion tools

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Complete Guide: Ring Size Converter

Everything you need to know about using Ring Size Converter effectively