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. -doramaindo.ai- Pending Train -2023- - 03 -720p...
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. An idealistic firefighter driven by an intense, sometimes
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. They awaken in a lush but barren wilderness,
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.
An idealistic firefighter driven by an intense, sometimes burdensome, need to save everyone.
The story begins on an ordinary morning in April 2023. Passengers boarding the 8:23 train in Tokyo are suddenly thrust into chaos when a flash of light and intense acceleration warp their carriage through a wormhole. They awaken in a lush but barren wilderness, soon realizing they are in a where civilization has collapsed.
A high school P.E. teacher who acts as the group's moral compass, often bridging the gap between Naoya and Yuto. Pending Train (TV Series 2023– ) - IMDb
A charismatic but cynical hairdresser who trusts no one due to his painful past.
With no food, water, or communication, the survivors must navigate internal power struggles and external threats while desperately seeking a way back to their own time to prevent the impending calamity that destroyed the world.
Survival on the Tracks: A Deep Dive into "Pending Train" (2023)
The Japanese sci-fi survival drama (known internationally as Pending Train ) emerged as a standout title in 2023, blending high-stakes survival with deep character introspection. Often compared to the cult classic Lost , the series explores the fragility of modern society when a routine commute turns into a fight for existence in a desolate future. Plot Overview: A Journey to the End of the World
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
An idealistic firefighter driven by an intense, sometimes burdensome, need to save everyone.
The story begins on an ordinary morning in April 2023. Passengers boarding the 8:23 train in Tokyo are suddenly thrust into chaos when a flash of light and intense acceleration warp their carriage through a wormhole. They awaken in a lush but barren wilderness, soon realizing they are in a where civilization has collapsed.
A high school P.E. teacher who acts as the group's moral compass, often bridging the gap between Naoya and Yuto. Pending Train (TV Series 2023– ) - IMDb
A charismatic but cynical hairdresser who trusts no one due to his painful past.
With no food, water, or communication, the survivors must navigate internal power struggles and external threats while desperately seeking a way back to their own time to prevent the impending calamity that destroyed the world.
Survival on the Tracks: A Deep Dive into "Pending Train" (2023)
The Japanese sci-fi survival drama (known internationally as Pending Train ) emerged as a standout title in 2023, blending high-stakes survival with deep character introspection. Often compared to the cult classic Lost , the series explores the fragility of modern society when a routine commute turns into a fight for existence in a desolate future. Plot Overview: A Journey to the End of the World
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.
