Ring Sizer & Measure App

Find your ring size with confidence. Ring Sizer makes it easy to estimate your ring size directly from your iPhone using simple guided measurement methods. Choose the method that works best for you and get a clear size reference in just a few steps. Multiple ways to measure: Ring on Screen Finger Measurement Paper Strip Manual screen calibration How to use: Place an existing ring on the screen and match the guide to the inner edge, follow the finger measurement flow, or use a paper strip to measure around your finger. For better accuracy, you can calibrate the display using a standard card before measuring. Helpful sizing tools: US ring size results International size conversions Ring size chart Measurement history Save and compare results Recalibrate your device anytime Ring Sizer is designed to make ring sizing simple whether you are shopping for yourself, comparing sizes, checking an existing ring, or preparing to order jewelry online. Unlock premium features with a one-time in-app purchase. No recurring subscription. Purchases are processed through Apple and previously purchased access can be restored using Restore Purchase. Legal & Support Privacy Policy https://ring-sizer-ios-2026.web.app/privacy/ Terms & Conditions https://ring-sizer-ios-2026.web.app/terms/