Ring Size Calculator
Find your perfect ring size by entering your measurement. Our calculator instantly converts to all international sizing standards.
Need a printable ring sizer?
Download our actual-size ring sizer PDF to trace existing rings or use the wrap-around measuring strip.
Enter Your Measurement
Keyboard shortcuts:Esc to clear •Ctrl+K to focus input
Visual Preview
Enter a measurement to see ring preview
No History Yet
Your calculation history will appear here. We'll save your recent measurements so you can quickly access them later. History is stored locally in your browser.
Important Disclaimer
This ring size calculator is provided for informational purposes only and should be used as a guide. Ring sizing can vary between manufacturers, styles, and individual preferences. For important jewelry purchases, we strongly recommend getting professionally measured by a jeweler. RingSizePro is not responsible for any sizing errors or purchase decisions made based on these calculations.
Need help with other calculations? Check out PresentForge (presentforge.com) for an AI-powered presentation generator.