Download Our Accurate Ring Sizer App
Need to measure on the go? Download our highly-rated Ring Sizer app for iOS. It's the most reliable way to find your ring size using your phone.
Last Updated: February 10, 2026
By using Ring Sizer Online, you agree to these terms. If you do not agree, please do not use the tool.
This tool is provided for informational purposes only. While we strive for high accuracy, the results should be used as a guide and not as a definitive professional measurement.
Accuracy depends on proper screen calibration. We are not liable for any incorrect ring purchases made based on measurements from this website.
Everything on this site, including the measuring tool logic and design, is property of Ring Sizer Online.
Need to measure on the go? Download our highly-rated Ring Sizer app for iOS. It's the most reliable way to find your ring size using your phone.