Ring Sizer & Size Finder
Measure ring,finger & ruler
About
Easily determine your ring size using your iPhone's screen. Measure existing rings or your finger directly, with support for international sizing standards and a built-in ruler for everyday use.
What's New in Ring Sizer & Size Finder
1.7.1
July 21, 2026
Bug fixes
Developer apps
FAQ
How does Ring Sizer & Size Finder measure ring size?
Ring Sizer & Size Finder allows you to place an existing ring on your iPhone screen and match it with an adjustable circle to determine its size. You can also measure your finger's width directly on the screen.
Does Ring Sizer & Size Finder support international ring sizes?
Yes, Ring Sizer & Size Finder supports multiple international measurement systems, including United States & Canada, United Kingdom & Australia, Europe (ISO), and Japan & China.
Can I measure my finger if I don't have a ring?
Absolutely. Ring Sizer & Size Finder includes a feature to measure your finger's width directly on your device, which is then used to calculate the correct ring size.
What other tools are included in Ring Sizer & Size Finder?
In addition to ring and finger sizing, the app features a built-in ruler tool that supports measurements in both inches and millimeters for everyday objects.
Is Ring Sizer & Size Finder accurate?
The app is designed for accurate ring sizing and finger measurement, eliminating guesswork. It aims to provide precise results for confident shopping.
What devices does Ring Sizer & Size Finder work on?
Ring Sizer & Size Finder is available for iPhone and iPad devices.
How often is Ring Sizer & Size Finder updated?
The latest version, 1.1.0, was released on April 25, 2026, indicating recent development and potential for future updates.
Does Ring Sizer & Size Finder have ads?
No, Ring Sizer & Size Finder does not contain advertisements.