Free Online Ring Sizer
Measure your ring size online using a ring you already own or a paper strip. Calibrate your screen and instantly see India, US, UK and EU sizes — no app, printer or signup required.

No app download needed
Calibrate, measure, then save or share your size.
Your Problem
Online ring shopping gets risky when size is unknown
Most buyers either guess, visit a store, print a chart, or send a seller a vague WhatsApp message. Each step adds friction and uncertainty.
Guessing size before an online jewellery order
Printable charts that need a printer and perfect scaling
Paper strips that are pulled too tight or too loose
Confusing international size conversion tables
Our Solution
A guided sizing flow built for jewellery buyers
Digital Ring Sizer combines calibration, visual measurement, international conversion, local saved sizes, and WhatsApp sharing in one clean browser experience.
Calibration first, because screens display pixels differently
Live diameter and circumference conversion
Finger-wise saved sizes with no login
Clear disclaimer and measurement guidance
Measurement modes
Choose how you want to measure
Have a ring that fits? Start there for the best check.
Existing Ring Mode
Match a ring that fits to the circle on your screen.
Best for: People who own a ring that fits the same finger
Finger Strip Mode
Measure a paper strip around your finger, then enter the length.
Best for: Users without an existing ring
Gift Size Guide
Get practical advice when you cannot measure the recipient directly.
Best for: Gift buyers and surprise proposals
Ring size references
Calculate a size or compare international and Indian size charts.
How measurements and size matching work
See what each method measures, why screen calibration matters, and how the shared chart selects a close match.
How It Works
Three quick steps
Calibrate your screen
Match a credit card to the on-screen reference.
Measure ring or strip
Use a ring you own, or enter finger circumference.
Save or share your size
Store sizes locally and send them to a jeweller on WhatsApp.
For sellers
Give shoppers a better answer than “please check size”
Jewellery sellers can share this tool from Instagram, WhatsApp, product pages, packaging inserts, or QR codes.
Made for easy sharing
Share this tool from Instagram, WhatsApp, product pages, packaging inserts, or QR codes to help shoppers start with a practical size estimate.
FAQ
Common ring sizing questions
Digital measurements are helpful estimates. For expensive jewellery, final confirmation from a professional jeweller is recommended.