About Ring Size Chart
The most accurate and privacy-friendly online ring sizer. Helping jewelry lovers find their perfect fit since 2024.
Our Mission
We believe everyone deserves to know their ring size without expensive trips to jewelers or privacy-invading apps. Our mission is to provide a free, accurate, and completely private way to measure ring sizes from any device.
What Makes Us Different
100% Privacy-First
All measurements happen locally on your device. We never upload photos, use your camera, or collect personal data.
Accurate Calibration
Unlike other tools that guess your screen size, we use real-world objects (coins, credit cards) to ensure pixel-perfect accuracy.
Brand Conversion
Get sizes for Pandora, Swarovski, Cartier, Tiffany and more. No more guessing how brand sizes translate.
Free Forever
Our core tools are and will always be free. We sustain ourselves through non-intrusive advertising.
Our Story
Ring Size Chart was born from a simple problem: trying to secretly measure a partner's ring size for a proposal. Existing tools either required downloading apps, uploading personal photos, or produced inaccurate results.
We built a better solution — one that respects your privacy, works on any device, and actually gives you accurate results. What started as a personal project has grown to help thousands of jewelry lovers worldwide.
Today, Ring Size Chart is used by individuals planning proposals, couples shopping for wedding bands, online jewelry shoppers, and even jewelry retailers embedding our widget on their websites.
Join Our Community
Have questions, feedback, or just want to say hello? We'd love to hear from you.
Get in Touch