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.
: Earlier editions were published by Donemus , with original copyrights dating back to 1995. Some study scores or historical full scores may still be available through their catalog.
For those looking for the most recent auditory interpretations of the score, several key milestones have updated the work's legacy: Joep Franssens: Harmony of the Spheres - The Culturium - joep franssens harmony of the spheres score new
Joep Franssens’ magnum opus, Harmony of the Spheres (1994–2001), remains a cornerstone of contemporary Dutch choral music. Written for mixed choir and string orchestra, this five-movement cycle is a profound exploration of spirituality, inspired by the philosophy of Benedictus de Spinoza. Whether you are a conductor seeking the official score or a listener captivated by its "holy now" atmosphere, recent developments in its publication and recording history have made the work more accessible than ever. Acquiring the Score : Earlier editions were published by Donemus ,
The official sheet music for Harmony of the Spheres is managed by specific publishers, and obtaining a "new" or current copy depends on your region and intended use. Written for mixed choir and string orchestra, this
: Since 2008, Franssens’ music has been published by Deuss Music in The Hague. They provide the most up-to-date editions for professional performance and rental.
: While some educational resources mention "free PDF downloads," users are encouraged to use authorized platforms like MusicaNet or the publisher's site to ensure ethical distribution and score accuracy. Recent Recordings and Versions
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
: Earlier editions were published by Donemus , with original copyrights dating back to 1995. Some study scores or historical full scores may still be available through their catalog.
For those looking for the most recent auditory interpretations of the score, several key milestones have updated the work's legacy: Joep Franssens: Harmony of the Spheres - The Culturium -
Joep Franssens’ magnum opus, Harmony of the Spheres (1994–2001), remains a cornerstone of contemporary Dutch choral music. Written for mixed choir and string orchestra, this five-movement cycle is a profound exploration of spirituality, inspired by the philosophy of Benedictus de Spinoza. Whether you are a conductor seeking the official score or a listener captivated by its "holy now" atmosphere, recent developments in its publication and recording history have made the work more accessible than ever. Acquiring the Score
The official sheet music for Harmony of the Spheres is managed by specific publishers, and obtaining a "new" or current copy depends on your region and intended use.
: Since 2008, Franssens’ music has been published by Deuss Music in The Hague. They provide the most up-to-date editions for professional performance and rental.
: While some educational resources mention "free PDF downloads," users are encouraged to use authorized platforms like MusicaNet or the publisher's site to ensure ethical distribution and score accuracy. Recent Recordings and Versions
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.
