Measure Ring Size
Honest ring sizing from your phone
Buying rings online is hard when you do not know your size, and phone screens are not reliable measuring tools on their own. The app needed to be useful without overpromising exact results.
A production-grade mobile app.
Measure Ring Size helps people figure out ring sizes when shopping online or checking a fit at home. Instead of pretending a phone screen is a perfect ruler, the app offers several practical paths — match a ring on screen, compare against one that already fits, enter a diameter manually, or use an optional camera check with a standard card for reference.
We built a simple, honest sizing experience with multiple measurement paths, support for US, UK, EU, JP, and millimeter sizes, and clear guidance on how confident each result is likely to be.
What makes it work in the real world.
- →Match your ring size on screen
- →Compare against a ring you already wear
- →Enter a diameter manually
- →Convert across US, UK, EU, JP, and mm
- →Optional camera-based verification
Built for real operations, not demos.
On-screen ring matching calibrated with a standard card
Compare a new ring against one that already fits
Manual size entry across international sizing systems
Optional camera verification for a second check
Clear confidence labels instead of false precision
How we made it work reliably in production.
- On-screen ring matching calibrated with a standard card
- Compare a new ring against one that already fits
- Manual size entry across international sizing systems
- Optional camera verification for a second check
- Clear confidence labels instead of false precision
Building something that needs to actually work in the real world?
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