Ring Sizer: Size & Measure
Finger Ruler & Size Chart
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Measure ring size on your iPhone ring on screen, finger ruler, or printable strip. US quarter calibration. US, UK, EU & JP sizes. Free to try.
Ring Sizer helps you estimate ring size at home on your iPhone no jeweler visit required.
Whether you're shopping for an engagement ring, wedding band, or gift, Ring Sizer is a ring size finder, ring size chart, and ring size converter in one app.
THREE WAYS TO MEASURE
• Ring Sizer — place a ring on screen and match the inner edge
• Finger Sizer — use the on-screen ruler at the knuckle
• Print & Measure — print a calibrated strip (Pro) and enter the mm reading
INTERNATIONAL SIZE CHART
See US, UK, European, Japanese, and Chinese sizes at once — with diameter and circumference in millimeters.
BUILT FOR REAL SHOPPING
• US quarter screen calibration for better accuracy
• Between-sizes guidance when you're between two sizes
• Discreet mode for surprise proposals
• Share your size via text
RING SIZER PRO
• Printable calibrated sizing strip
• Save unlimited ring sizes
• Jeweler-ready PDF export
Results are estimates — confirm with a jeweler or ring mandrel before ordering.
Core ring sizing is free to try.
• Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
• Privacy Policy: https://docs.google.com/document/d/1Y4Mhhyeza2RJlpv2dAGQ2yM7A4Lisr6Y8B_jnYcvg-c/edit?usp=sharing
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, RUEBEN ANSOLIWEN AKANKOBATENG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- RUEBEN ANSOLIWEN AKANKOBATENG
- Size
- 15.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Japanese, Portuguese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- All access Lifetime $19.99
- All access weekly $2.99
- Copyright
- © AKANKOBATENG 2026