About Us
Accurate ring measurements without leaving home — using technology everyone already has in their pocket.
Buying a ring online should be exciting — not stressful. Yet for millions of people, the single biggest barrier is not knowing their ring size. Standard sizing charts are confusing, sizing systems differ across countries, and visiting a jeweller just to get measured feels like unnecessary friction.
We built AIRingSize.com to remove that barrier entirely. Using your smartphone camera and a coin you already have in your wallet, our tool calculates your ring size in seconds — no trip to the jeweller, no physical ring sizer kit, no guesswork.
We believe accurate jewellery sizing should be free and accessible to everyone, whether you're buying an engagement ring in Mumbai, a smart ring in Singapore, or a fashion piece from an international brand. That's why we support US, UK, EU, Indian, and Japanese ring size standards in a single tool.
Pick AI Camera mode for a quick hands-free estimate, or Precision mode where you place a coin beside your finger for a reference-based calculation accurate to ±1 ring size.
Follow the on-screen guide. For best results, lay your hand flat on a table with your chosen coin on the same surface. Our overlay shows exactly where to place each item.
Your result appears in all major standards — US/CA, UK/AU/NZ, EU/ISO, Indian, and Japanese — with the inner diameter and circumference in millimetres.
We believe in transparency. Here's what you can realistically expect from each mode.
Great for a quick estimate. Accuracy depends on lighting, hand position, and which finger you use. Best with ring or middle finger.
Highly accurate when the coin and finger are on the same flat surface and the camera is directly above. Margin: ±1 ring size.
1 in 3
online ring purchases are returned due to incorrect sizing
82%
of shoppers guess their ring size when buying online
₹3,000+
average cost to professionally resize a ring in India
A ring that doesn't fit isn't just an inconvenience — it can be a significant expense. Resizing is not always possible (some metals and settings cannot be resized), and international returns on jewellery orders can take weeks with no guarantee of refund.
Getting the size right the first time saves money, time, and the emotional disappointment of receiving a beautiful ring that simply won't go on. That's the problem we're solving.
✉️
We're always improving. If you measured yourself and found the result was off, we'd love to know — your real-world data helps us calibrate the algorithm.
hello@airingsize.comOr head straight to the tool: AI Ring Sizer →