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Trimaani

Ring size chart

Measure a ring you already wear, then read across to your size in any standard.

Last updated 7 October 2026

Measure A Ring

  • Select a ring that already sits well on the finger where you plan to wear your new piece.
  • Determine the inner diameter of that ring with a ruler or tape measure. Make sure your ruler displays millimeter (mm) markings, then lay the ring flat over the ruler and read the measurement across the interior opening — this is the surface that rests against your skin.
  • Refer to the Ring Size Chart below to match your diameter reading to the corresponding ring size.

Several environmental and bodily conditions can influence how a ring fits, so it is worth accounting for these before settling on a size. As a general rule, if you are estimating your partner’s ring size, it is better to err on the larger side — resizing a ring smaller is far simpler than enlarging it.

Average Ring Sizes

As a helpful benchmark, women’s ring sizes in India typically fall between 9 and 14, whereas men’s sizes generally range from 17 to 22 (India). When no other sizing details are available, selecting within these standard ranges is your safest option.

The best time to take a finger measurement is during the evening hours. Fingers naturally swell throughout the day and tend to be at their widest by nightfall, while they are usually slimmer in the morning. Taking the measurement in the evening helps ensure a consistently comfortable fit.

Optimal Temperature

Temperature has a noticeable effect on finger size. Cold weather causes fingers to contract and become slimmer, while warm or humid conditions make them expand. For the most accurate measurement, avoid sizing your finger in extreme heat or cold.

Fingers Expand And Contract

A number of additional factors can temporarily increase finger size, including physical activity, fluid retention, pregnancy, the natural aging process, and arthritis. Conversely, weight loss and exposure to cooler temperatures can cause fingers to become smaller.

Thicker bands

Wider ring bands (those exceeding 6mm) tend to feel snugger on the finger. We recommend choosing half a size larger when opting for a thicker band to maintain a comfortable everyday fit.

Kindly be aware that the details provided above serve as general guidance only. Trimaani cannot be held liable for any inaccuracies that may arise from reliance on this information.

Ring Size Chart

For INDIAN Customer only

  • Should you still be uncertain about your precise size, simply go ahead and place your order using the steps outlined above.
  • Once we receive your order and payment, we will ship a complimentary “Ring Sizer Measuring Tool” directly to you. A reference image of the tool is displayed below. Using this sizer, you can accurately determine the ring size that fits your finger perfectly.
  • Try on each ring from the sizer and record the size of the one that provides the best fit for your finger.
  • At the top loop of your chosen ring on the sizer, you will see a printed size number (this value is displayed in mm and corresponds to US sizing standards).
  • Simply record this number and share it with us via email or WhatsApp as your confirmed ring size. If you have any difficulty reading the number, take clear photographs of both sides of the ring showing the markings and send them to us — we will identify the correct size on your behalf.
  • Your ring will only enter production once we have received your confirmed size.
  • There is absolutely no extra charge for the “Ring Sizer Measuring Tool”. Feel free to hold on to it — it may come in handy for any future jewellery purchases.

Conversion table

Inside diameter is the measurement across the inside of the band.
Inside Diameter (mm)India (IN)United States & Canada (US)EuropeUK, Australia & South AfricaChinaSingapore & JapanHong Kong
14.054344F646
14.24-3.2545F.5-5-
14.4553.5-G--7.5
14.6563.7546G.5-6-
14.887447H879
15.09-4.25-H.59--
15.2984.548I-810
15.49-4.75-J---
15.79549J.510911
15.9-5.2550K---
16.1105.5-K.5111012
16.31-5.7551L---
16.5111652L.5121113
16.71126.25-M1312-
16.92136.553M.5-1314.5
17.12-6.75-N14--
17.3214754N.5-1416
17.53-7.2555O15--
17.73157.5-O.5-1517
17.93-7.7556P16--
18.1416857P.51716-
18.34-8.1-Q---
18.54178.25-Q.5--18
18.75-8.5-R18-19
18.95188.7558R.5-17-
19.15-959S--20.5
19.35199.25-S.51918-
19.56-9.560T-19-
19.76-9.7561T.5--22
19.962010-U-20-
20.172110.2562U.5-2123
20.37-10.5-V2022-
20.57-10.7563V.5--24
20.78-1164W--25
20.98-11.25-W.5---
21.18-11.565X212326
21.392211.7566X.5---
21.59-12-Y--27.5
21.79-12.2567Z67--
22-12.5-Z.5---
22.2-12.7568-2224-
22.4-1369----
22.61-13.2570Z1--30
22.81-13.5-----
23.01-1471Z2---
23.22-14.25-Z3---
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