The complete India to UK ring size conversion guide 2026 — Indian numeric ring sizes (1–26) to UK letter sizes (A–Z+2). Full conversion chart with mm circumference, diameter, US/EU equivalents, Malabar Gold, Tanishq and Candere size data, women's and men's averages, and free calculator
India uses a numeric ring sizing system — sizes run from 1 upward (typically 1 to 26 in standard retail ranges). Indian ring sizes are based on the inner circumference of the ring in millimetres, similar in principle to the European EU system — but the numbers do not equal the circumference directly. Indian size 13, for example, has a circumference of approximately 53.4mm. The UK uses an alphabetical letter system from A to Z+2 — so a conversion chart is always required between the two systems.
The most common women's conversion is Indian 13 ≈ UK N (53.4mm · women's average). The most common men's conversion is Indian 21 ≈ UK T (60.8mm · men's average). Indian ring sizes are used by all major Indian jewellery brands — Malabar Gold & Diamonds, Tanishq, Kalyan Jewellers, PC Jeweller, Candere, and CaratLane — and are the standard across India, Bangladesh, Pakistan, Sri Lanka and Nepal.
Indian ring sizes are numeric (1, 2, 3…) but the numbers do not equal circumference or diameter values directly — they follow a standardised mm scale established by Indian jewellers and codified by brands like Malabar Gold, Tanishq and Candere. UK sizes use A–Z+2 letters with no mathematical link to the Indian numbers. A conversion chart is the only reliable method. The size data on this page is sourced from Malabar Gold & Diamonds, Tanishq official size guides, Candere, and Opal Direct's international chart.
🇺🇸 US 6.5 | 🇪🇺 EU 53
Circumference: ≈53.4mm
Diameter: ≈16.99mm
Ring finger, left hand
🇺🇸 US 9.5 | 🇪🇺 EU 61
Circumference: ≈60.8mm
Diameter: ≈19.35mm
Ring finger, left hand
🇺🇸 US 5.75–7.5 | 51.2–56.3mm
Diameter: 16.3–17.92mm
Most common Indian women's range
🇺🇸 US 8.5–10.5 | 58.3–64.0mm
Diameter: 18.55–20.37mm
Most common Indian men's range
Find your Indian ring size in the first column (IN column). Read across the same row to find the equivalent UK letter size, US/CA numeric size, EU number, and exact mm circumference and diameter. Size data is sourced from Malabar Gold & Diamonds, Tanishq, Candere and the Opal Direct international ring size chart. Many Indian sizes fall between standard UK half-letter sizes — where this occurs, the nearest UK letter is shown with a ½ indicator (e.g. UK L½). Always choose the larger UK size when in doubt.
| 🇮🇳 Indian | 🇬🇧 UK / 🇦🇺 AU | 🇺🇸 US / 🇨🇦 CA | 🇪🇺 EU | Circ. (mm) | Diam. (mm) | Circ. (cm) | Best For |
|---|---|---|---|---|---|---|---|
| 1 | C½ | 1.5 | 41 | 41.01 mm | 13.1 mm | 4.10 cm | Children / XS |
| 2 | D½ | 2 | 43 | 42.70 mm | 13.3 mm | 4.27 cm | XS Women |
| 3 | E | 2.5 | 43 | 42.90 mm | 13.7 mm | 4.29 cm | Small Women |
| 4 | E½ | 3 | 44 | 43.60 mm | 13.9 mm | 4.36 cm | Small Women |
| 5 | F½ | 3.5 | 45 | 44.80 mm | 14.3 mm | 4.48 cm | Small Women |
| 6 | G½ | 4 | 46 | 46.10 mm | 14.7 mm | 4.61 cm | Women |
| 7 | H½ | 4.5 | 47 | 47.40 mm | 15.08 mm | 4.74 cm | Women |
| 8 | I | 4.75 | 48 | 48.00 mm | 15.28 mm | 4.80 cm | Women |
| 9 | J | 5 | 49 | 48.70 mm | 15.7 mm | 4.87 cm | Women |
| 10 | K | 5.25 | 50 | 50.00 mm | 15.9 mm | 5.00 cm | Women |
| 11 | L | 5.75 | 51 | 51.20 mm | 16.3 mm | 5.12 cm | Women |
| 12 | M | 6 | 52 | 52.50 mm | 16.7 mm | 5.25 cm | Women |
| 13 ⭐ | N ⭐ | 6.5 | 53 | 53.40 mm | 16.99 mm | 5.34 cm | Women's Avg ⭐ |
| 14 ⭐ | N½ | 7 | 54 | 54.40 mm | 17.3 mm | 5.44 cm | Women Popular |
| 15 ⭐ | O½ | 7.25 | 55 | 55.70 mm | 17.7 mm | 5.57 cm | Women Popular |
| 16 ⭐ | P ⭐ | 7.5 | 56 | 56.30 mm | 17.92 mm | 5.63 cm | Women Popular |
| 17 | Q | 8 | 57 | 57.60 mm | 18.34 mm | 5.76 cm | Slim Men / Large Women |
| 18 | Q½ | 8.25 | 58 | 58.30 mm | 18.55 mm | 5.83 cm | Slim Men |
| 19 | R | 8.5 | 59 | 58.90 mm | 18.75 mm | 5.89 cm | Lean Men |
| 20 | S½ | 9 | 60 | 59.50 mm | 18.94 mm | 5.95 cm | Avg Slim Men |
| 21 ⭐ | T ⭐ | 9.5 | 61 | 60.80 mm | 19.35 mm | 6.08 cm | Men's Avg ⭐ |
| 22 ⭐ | U ⭐ | 10 | 63 | 62.10 mm | 19.77 mm | 6.21 cm | Men Popular |
| 23 ⭐ | U½ | 10.25 | 63 | 63.10 mm | 20.09 mm | 6.31 cm | Men Popular |
| 24 ⭐ | V ⭐ | 10.5 | 64 | 64.00 mm | 20.37 mm | 6.40 cm | Men Popular |
| 25 | W½ | 11 | 65 | 65.70 mm | 20.91 mm | 6.57 cm | Athletic Men |
| 26 | X½ | 11.5 | 67 | 67.00 mm | 21.32 mm | 6.70 cm | Broad Men |
Malabar Gold & Diamonds is India's largest jewellery chain and uses the standard Indian numeric sizing system (1–26+). Their in-store sizers use metal mandrel rings in all Indian sizes. For UK customers ordering online from Malabar — use Indian size 13 for UK N (women's average), Indian size 16 for UK P, and Indian size 21 for UK T (men's average). Malabar stores in the UK (London, Birmingham, Leicester, Manchester) size customers in Indian sizes and will confirm the UK letter equivalent on request. Always confirm with Malabar staff before purchasing as slight variations between their 22ct gold and diamond ring moulds can affect the fit by half a size.
Tanishq (a Tata Group brand) publishes an official ring size guide using the same Indian numeric system. Their most popular women's sizes are Indian 12, 13 and 14 — corresponding to UK M, UK N and UK N½ respectively. Their most popular men's sizes are Indian 20, 21 and 22 — corresponding to UK S½, UK T and UK U. Tanishq rings are available online at tanishq.co.in — UK shoppers should select their Indian size equivalent from the chart above. Tanishq also ships internationally; their customer service team can confirm sizes in UK equivalents on request.
All major Indian online jewellery platforms — Candere (a Kalyan brand), CaratLane (a Tanishq company), PC Jeweller, and Senco Gold — use the same standard Indian numeric sizing system shown in the chart above. Candere publishes their own printable ring sizer (available at candere.com) calibrated to Indian numeric sizes. CaratLane offers a virtual ring sizer on their mobile app. For any of these platforms, UK shoppers should use the master chart above to find their Indian size equivalent before ordering. Most Indian jewellery platforms accept returns and exchanges for size adjustments within 15–30 days.
Because Indian ring sizes use a finer increment than the standard UK alphabetical system, many Indian sizes fall between two standard UK full-letter sizes. On this page these are shown as UK L½, UK N½, UK O½ etc. — meaning the size falls halfway between two standard UK letters. When ordering a ring from a UK jeweller, always choose the larger UK letter (e.g. UK N½ → select UK O). If the jeweller offers half-sizes, you can request the exact half-size. Most quality independent jewellers and Goldsmiths, Beaverbrooks and H.Samuel can size to UK half-letter increments on request.