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.
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.
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.
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.
Use our free online tool. No download needed.
Step 1: Calibrate Your Screen
Place a standard credit card on your screen for pixel density calibration.
Place your ring on the screen and drag the handles to match its inner edge.
Your Ring Size
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US Size
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UK Size
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EU Size
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Japan Size
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Diameter (mm)
Tip: Calibrate your screen with a credit card first for maximum accuracy. Want size history, family profiles, and advanced features? Download the app.
A standard credit card is 85.6mm wide. Drag the handles to match your card's width exactly.
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
There are several websites and online resources that provide QR codes for Chrono Trigger DS ROM, allowing users to quickly and easily download the game. However, it's essential to note that downloading ROMs of games without owning a physical copy can be considered piracy and may be against the terms of service of the game's publisher.
: TWiLight Menu++ automatically applies AP (Anti-Piracy) patches. This is crucial because Chrono Trigger DS has infamous anti-piracy code that traps players in an infinite time-portal loop at the start of the game if it detects an improper loading method. Better Method 2: NDS Forwarder Generator
Do you already have installed on your console?
In the modern retro gaming scene, custom firmware (CFW) has revolutionized how players interact with classic consoles like the Nintendo 3DS and 2DS. Applications like (a 3DS title manager) allow users to install games wirelessly by simply scanning a QR code with the console’s camera.
The DS release stands out by offering a "best-of-both-worlds" experience: chrono trigger ds rom qr code better
Direct installs sometimes cause the game to crash or fail to save. The Better Way to Play
Three randomized dungeons that expand on the backstories of the main cast and offer ultimate weapons.
A more accurate translation that stays truer to the original Japanese script while removing some of the SNES-era censorship.
With so many ways to play (SNES Classic, PS1, Mobile, PC), why go through the trouble for the DS ROM? There are several websites and online resources that
FBI will download and install the game directly over your local Wi-Fi network.
A new dungeon set in the Prehistoric and Middle Age eras.
If you're interested in playing Chrono Trigger DS, there are alternative options:
Ensure your custom firmware (CFW) and application managers are updated to the latest versions to handle modern network protocols and secure downloads seamlessly. This is crucial because Chrono Trigger DS has
To get a truly "better" visual experience using a standard ROM (obtained via QR or otherwise), follow this gold standard for emulation:
To truly make Chrono Trigger DS look and feel better on a 3DS or 2DS system, utilize these system tweaks: Pixel-Perfect Resolution
Subreddits dedicated to ROMs and homebrew frequently share verified, community-tested QR codes in mega-threads.
The modern solution? Scanning a directly through an application like FBI (the open-source title manager for 3DS custom firmware). This method is widely considered "better" for several distinct reasons: Streamlined, Computer-Free Installation
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.
