Free iPhone ring sizer app: measure a ring on screen, measure finger width, convert US, UK, EU, JP and letter sizes, and save sizes in seconds.
5.84k+ downloads · 4.8 stars
Updated iPhone interface
The updated app keeps ring measurement, finger measurement, conversion, and saved sizes cleanly connected.
Measure a ring, measure a finger, convert standards, and save sizes without visiting a jeweler.
Ring Measurement
Place a ring on the circle and adjust the guide until the inner edge matches.
Saved Sizes
Keep important ring sizes ready for yourself, family, partners, and gift planning. techgrapple games
Global Size Standards
Convert between US, UK, EU, Japan, Australia, India, and millimeter measurements.
Finger Width Mode
No ring? Measure your finger directly across the on-screen bar and fine-tune the millimeter value. Whether you are a fan of retro classics,
Offline & Private
Works fully offline. Your data never leaves your device. Zero tracking.
Instant Results
Your size appears immediately in all major standards — US, UK, EU, and more. This transition was driven by the growing demand
Engagement Ready
Planning a surprise proposal? Secretly measure a ring while they're away.
Size History
Track how your ring size changes over time with measurement history.
Clean iPhone UI
Large controls, clear rulers, and focused sheets make each sizing task easy to follow.
Whether you are a fan of retro classics, high-octane racing, or mind-bending puzzles, TechGrapple offers a curated experience designed for accessibility and fun. The Evolution of TechGrapple Games
The platform’s strength lies in its diversity. TechGrapple categorizes its offerings to help users find exactly what they are looking for in seconds: Unblocked Games by Tech Grapple | Free to Play at School
Originally known for its tech tips and blogging guides, expanded its reach into the gaming world by hosting a dedicated portal for unblocked games . This transition was driven by the growing demand for "plug-and-play" entertainment that doesn't require high-end hardware or complex installations. Today, the platform serves as a hub for both casual players and those seeking a nostalgic trip through gaming history. Top Gaming Categories on TechGrapple
Ultimate Guide to TechGrapple Games: Your Portal to Free and Unblocked Gaming
* Basketball Superstars. * Blacktop Police Chase. * Plants vs Zombies – Merry Christmas Version. * FNF vs Imposter V4 (Among Us) * TechGrapple Games Play Games Online - Unblocked for all - Tech Grapple
In the modern digital landscape, finding a reliable source for free entertainment that works across various environments can be a challenge. has emerged as a premier destination for players looking to access a massive library of browser-based titles without the typical restrictions found in schools or workplaces .
No jeweler visit. No guesswork. Just your phone.
Choose a Mode
Measure an existing ring on the circle, or switch to finger width mode when no ring is available.
Align the Guide
Use the ruler, slider, and plus/minus controls to match the ring or finger width precisely.
Save or Convert
See the measurement instantly, save it for later, or convert it between international standards.
Buy jewelry anywhere in the world with confidence.
US
& Canada
UK
& Australia
EU
Europe
JP
Japan
IN
India
mm
Diameter
Ring Sizer works entirely offline. Your measurements never leave your device. We don't collect, share, or sell any of your data. Ever.
"Used this app to measure ring size. It's accurate and it's really helpful."
Pradep12 · App Store Review
Whether you are a fan of retro classics, high-octane racing, or mind-bending puzzles, TechGrapple offers a curated experience designed for accessibility and fun. The Evolution of TechGrapple Games
The platform’s strength lies in its diversity. TechGrapple categorizes its offerings to help users find exactly what they are looking for in seconds: Unblocked Games by Tech Grapple | Free to Play at School
Originally known for its tech tips and blogging guides, expanded its reach into the gaming world by hosting a dedicated portal for unblocked games . This transition was driven by the growing demand for "plug-and-play" entertainment that doesn't require high-end hardware or complex installations. Today, the platform serves as a hub for both casual players and those seeking a nostalgic trip through gaming history. Top Gaming Categories on TechGrapple
Ultimate Guide to TechGrapple Games: Your Portal to Free and Unblocked Gaming
* Basketball Superstars. * Blacktop Police Chase. * Plants vs Zombies – Merry Christmas Version. * FNF vs Imposter V4 (Among Us) * TechGrapple Games Play Games Online - Unblocked for all - Tech Grapple
In the modern digital landscape, finding a reliable source for free entertainment that works across various environments can be a challenge. has emerged as a premier destination for players looking to access a massive library of browser-based titles without the typical restrictions found in schools or workplaces .
Guides, tools, and charts to help you find the perfect fit.
Ring Size Chart
Complete conversion chart for US, UK, EU, Japan, and Australian ring sizes with diameter in mm.
How to Measure Ring Size at Home
5 free methods to find your ring size without visiting a jeweler — app, string, paper strip, and more.
Ring Size Calculator
Enter your ring diameter or circumference to instantly find your size in every international standard.
UK Ring Sizes (A–Z)
British letter-based sizing guide with full chart, Hatton Garden tips, and UK to US conversion.
Men's Ring Size Guide
Average men's ring sizes, measurement tips, and a complete chart for wedding bands and signet rings.
Secret Engagement Ring Sizing
How to find your partner's ring size without them knowing — clever tips for surprise proposals.
Free to download. Works on iPhone. No tools needed.
