Ring Size Guide for India: Indian, US, UK & EU Conversion
Written by Dhruv
June 4, 2026
When shopping for jewelry online or visiting a jeweler in India, you will quickly notice that the sizing system differs significantly from Western standards. While the US uses a numerical scale (typically 3 to 13) and the UK uses an alphabetical scale (A to Z), India utilizes a local numerical scale ranging from 1 to 30.
Failing to convert these sizes correctly can lead to buying a ring that is either too tight or slips off. If you are buying jewelry from Indian brands like Tanishq, CaratLane, Kalyan, or BlueStone, or if you are an NRI looking to buy jewelry from India, this guide will explain the Indian sizing system and show you how to convert between standards.
The Indian Ring Sizing System Explained
The Indian ring sizing scale is based on the inner diameter of the ring in millimeters.
- A size 1 represents an inner diameter of approximately 13.1 mm (41.0 mm circumference).
- A size 30 represents an inner diameter of approximately 22.3 mm (71.0 mm circumference).
- The most common sizes for Indian women are between 10 and 14, while the average sizes for Indian men range from 18 to 22.
Because the scale runs from 1 to 30, it allows for highly precise fitting without relying on fractional sizes (like half or quarter sizes in the US system).
Indian Ring Size Conversion Table
Here is the master conversion chart mapping Indian sizes to US, UK, European, and Japanese scales, along with the exact millimeter measurements.
| Indian Size | Inside Diameter (mm) | Inside Circumference (mm) | US / Canada Size | UK / Australia Size | Europe Size | Japan Size |
|---|---|---|---|---|---|---|
| 5 | 14.3 | 44.8 | 3 | F | 44 | 4 |
| 6 | 14.7 | 46.1 | 3.5 | G | 45 | 5 |
| 7 | 15.1 | 47.4 | 4 | H 1/2 | 47 | 7 |
| 8 | 15.3 | 48.0 | 4.5 | I 1/2 | 48 | 8 |
| 9 | 15.5 | 48.7 | 5 | J 1/2 | 49 | 9 |
| 10 | 15.9 | 50.0 | 5.5 | K 1/2 | 50 | 10 |
| 11 | 16.3 | 51.2 | 5.75 | L 1/2 | 51 | 11 |
| 12 | 16.5 | 51.9 | 6 | M | 52 | 11 |
| 13 | 16.9 | 53.1 | 6.5 | N | 53 | 13 |
| 14 | 17.3 | 54.4 | 7 | O | 54 | 14 |
| 15 | 17.5 | 55.1 | 7.25 | P | 55 | 15 |
| 16 | 17.9 | 56.3 | 7.5 | P 1/2 | 56 | 15 |
| 17 | 18.1 | 57.0 | 8 | Q | 57 | 16 |
| 18 | 18.5 | 58.3 | 8.5 | Q 1/2 | 58 | 17 |
| 19 | 18.8 | 58.9 | 9 | R 1/2 | 59 | 18 |
| 20 | 19.2 | 60.2 | 9.25 | S | 60 | 19 |
| 21 | 19.4 | 60.8 | 9.5 | S 1/2 | 61 | 19 |
| 22 | 19.8 | 62.1 | 10 | T 1/2 | 62 | 20 |
| 23 | 20.0 | 62.7 | 10.25 | U | 63 | 21 |
| 24 | 20.4 | 64.0 | 10.5 | U 1/2 | 64 | 22 |
| 25 | 20.6 | 64.6 | 11 | V 1/2 | 65 | 23 |
| 26 | 21.0 | 65.9 | 11.5 | W 1/2 | 66 | 24 |
| 27 | 21.1 | 67.2 | 12 | Y | 67 | 25 |
How to Measure Your Indian Ring Size at Home
If you do not have access to a jeweler's metal sizing rings, you can measure your size accurately at home using these methods:
1. The Calibrated Screen Sizer (Highly Recommended)
Printer scaling issues often make printable paper rulers inaccurate. Our digital tool solves this:
- Place a credit card, ID card, or gift card vertically on your screen and adjust the slider to match its width. This calibrates your device's pixels to physical millimeters.
- Put your finger on the screen and drag the lines to measure the width and thickness.
- The tool will instantly calculate your circumference and give you the Indian size.
2. The Paper Strip Method
- Cut a strip of paper 10cm long and 1cm wide.
- Wrap it around the base of your finger, making sure it goes over your knuckle.
- Mark the overlap point.
- Measure the length in millimeters with a ruler. Match this circumference to the table above. E.g., 54.4 mm corresponds to Indian Size 14.
Key Tips for Indian Jewelry Shoppers
- Climate Swelling: India has a warm climate. Fingers expand in the heat and contract in air-conditioned environments. Measure your finger at the end of the day when it is warmest for the most comfortable fit.
- Gold Purity Considerations: Traditional Indian wedding rings are made of 22k gold, which is softer than 18k or 14k gold. Soft metal rings are easier to resize but can deform slightly over time if subjected to heavy pressure.
Need to find your ring size right now?
Use our interactive, screen-calibrated ring sizer. It's accurate down to the millimeter and works in any browser.
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