Ring Sizer: Finger Measure App
Ring Size Measure Finger Sizer
About
Easily determine your perfect ring size from home using your phone's screen or camera. Get accurate measurements in seconds and convert between international sizing standards.
What's New in Ring Sizer
0.2.0
May 4, 2026
- Minor improvements
Subscription plans
premium
Annual Standard premium subscription
Developer apps
FAQ
How accurate is Ring Sizer?
Ring Sizer is designed for precision, offering accurate results through its finger-on-screen, ring-on-screen, and camera measurement methods. The camera method is highlighted as the most accurate, utilizing credit card calibration and device pixel density for lab-level precision.
Can I use Ring Sizer without an internet connection?
Yes, Ring Sizer works offline. You can measure your finger size or ring size anywhere, anytime, without requiring an internet connection.
What ring size standards does Ring Sizer support?
Ring Sizer supports all major international sizing systems, including US, EU, UK, and Japanese standards. It allows for instant conversion between these formats.
How does the camera measurement feature work in Ring Sizer?
The camera measurement feature uses credit card calibration and your device's camera to measure your finger size with high precision. It accounts for your device's unique pixel density for reliable results.
What are the subscription options for Ring Sizer?
Ring Sizer offers premium subscription plans: $3.99 per 7 days with a 3-day free trial, and $29.99 per year with a 3-day free trial.
How quickly can I get my ring size with Ring Sizer?
You can measure your ring size in under 30 seconds using Ring Sizer. Simply open the app, choose your preferred method, and follow the on-screen instructions.
What devices is Ring Sizer available on?
Ring Sizer is currently supported on iPhone devices.
When was Ring Sizer last updated?
Ring Sizer was last updated on May 4, 2026, with version 0.2.0.