Ring Size Chart
Compare US, UK, EU, and JP ring sizes in one table with diameter and circumference in millimeters.
View Ring Size Chart
Warm Editorial Utility
Free Ring Size Chart, Calculator & Printable Sizer
Find your ring size with a US, UK, EU and JP chart, online calculator, converter, measurement guide and printable ring sizer.
Download Printable Sizer- US, UK, EU & JP sizes
- Diameter and circumference
- Printable guide
Ring size tools in one practical workflow
Start with the ring size chart as your reference, use the calculator or converter for quick matching, and confirm with the printable ring sizer if needed.
Ring Size Calculator
Enter diameter or circumference in mm, cm, or inches and get the closest standardized ring size instantly.
Open Calculator
Ring Size Converter
Quickly convert between US, UK, EU, and JP ring sizes from diameter or circumference.
Open Converter
How to Measure Ring Size
Follow three easy at-home measurement methods and practical fit guidance.
Read Guide
Printable Ring Sizer
Print a ring sizing sheet with ruler calibration, card reference, circle chart, and strip sizer.
Open Printable
Popular ring size guides
Use the main ring size chart as the primary reference, then jump to the sections you need most.
Ring Size Chart in MM
Lookup millimeter diameter and circumference values by size row.
Open MM Chart
Men's Ring Size Chart
Compare common men's sizes across US, UK, EU, and JP systems.
Open Men's Chart
International Ring Size Conversion
Convert quickly between US, UK, EU, and JP ring size labels.
Open Converter
Printable Ring Size Chart
Print a warm worksheet to measure and verify fit at home.
Open Printable
Homepage FAQ
What is the easiest way to find my ring size?
Start with the ring size chart, then confirm with the ring size calculator or printable ring sizer for a second check. Start with the ring size chart.
Should I use a ring size chart or calculator?
Use the chart for full side-by-side reference and use the calculator when you already have a diameter or circumference measurement to match quickly. Try the ring size calculator for quick matching.
Can I measure ring size at home?
Yes. You can use string or paper for finger circumference, measure an existing ring diameter, or follow the full how to measure ring size guide. See how to measure ring size.
Can I print a ring sizer?
Yes. Open the printable ring sizer and print at 100% scale, then verify calibration before checking your size. Open the printable ring sizer.
Are US, UK and EU ring sizes different?
Yes. They use different formats, so use the ring size chart or converter to map one system to another accurately. Convert quickly with the ring size converter.