Tennis bracelets
Getting the Length Right
Too tight is uncomfortable. Too loose is how bracelets are lost. And unlike a ring, a tennis bracelet cannot simply be resized.
Written by the Mapple Gems workshop, Surat Β· Updated 28 August 2026
Short answer
Measure the wrist snugly with a strip of paper, then add about 1.5cm. Most women take 17β18cm (6.75β7 inches). The bracelet should slide over the wrist bone but not over the hand β if it passes your hand, it will come off on its own. Length is set by link count, so ask for an extender rather than assuming it can be resized later.
A ring that is slightly wrong can be resized in an afternoon. A tennis bracelet cannot, because its length is not a band of metal β it is a fixed number of individually set links. Shortening it means removing links, which changes the stone count. Lengthening it means adding links that must match.
So length is one of the few jewellery decisions that is genuinely near-permanent, and it deserves five minutes rather than a guess.
How to measure
- Cut a strip of paper about a centimetre wide.
- Wrap it round the wrist just below the wrist bone, where the bracelet will actually sit β not over the bone and not up the forearm.
- Snug, not tight. It should touch the skin all the way round without compressing it.
- Mark where it overlaps, lay it flat and read the millimetres.
- Add 1.5cm for a classic fit, 1cm for a closer fit, 2cm if you want it to move.
Measure at the warmest part of the day. Wrists, like fingers, are smaller in the morning and in cold weather, and a bracelet sized on a cold morning will feel tight by the afternoon.
| Wrist measurement | Classic fit (+1.5cm) | In inches |
|---|---|---|
| 14.0 cm | 15.5 cm | 6.1β³ |
| 15.0 cm | 16.5 cm | 6.5β³ |
| 16.0 cm | 17.5 cm | 6.9β³ β the commonest |
| 17.0 cm | 18.5 cm | 7.3β³ |
| 18.0 cm | 19.5 cm | 7.7β³ |
| 19.0 cm | 20.5 cm | 8.1β³ |
The test that actually matters
Forget how it looks for a moment and check one thing: can the fastened bracelet slide over your hand?
It should pass the wrist bone with a little resistance and then stop. If it slips over the knuckles of a relaxed hand, it is too long β and that is the specific failure mode that loses bracelets, because it does not need the clasp to open at all. The bracelet simply works its way off while you are putting on a coat.
The opposite error is quieter but real. A bracelet that cannot move at all sits on the same line of skin all day, marks it, and stops the piece hanging the way it should. A tennis bracelet is meant to rotate slightly and catch light as the wrist moves.
Ask for an extender
Because length is fixed at manufacture, the single most useful thing to request is a short extension chain at the clasp β typically 2β3cm with a couple of intermediate links.
It costs very little, it is invisible when not in use, and it solves three separate problems: it absorbs a measurement that was slightly off, it accommodates a wrist that changes with weather or over years, and it makes the bracelet giftable without knowing the size, which is otherwise nearly impossible on this piece.
Two things to specify with it. The extender should be the same metal and fineness as the bracelet, and the end link should be soldered closed rather than an open jump ring β an unsoldered jump ring is one of the three commonest points at which any piece of jewellery is lost.
From our bench in Surat
Shortening a tennis bracelet is not like taking links out of a watch strap, and this catches people out. Every link holds set stones, so removing links removes stones β the total carat weight on your paperwork stops matching the piece, which matters at valuation. Lengthening is worse: added links have to match the existing ones in stone size, colour and setting style, and melee under about 0.2ct is never individually certified in any material, so matching is done by eye against a parcel.
Which is why we would rather add a plain extender than alter the stone line. It keeps the certificate, the carat weight and the appearance intact, and it is reversible. If you are ordering as a gift and genuinely cannot measure, say so β we will build in the extender by default rather than let you guess a number.
Length interacts with stone size
One thing worth knowing before you settle on a length. A tennis bracelet's total carat weight is spread across however many links fit that length β so on a longer bracelet, the same stated carat weight is divided among more stones, and each individual stone is smaller.
If you compare two bracelets at the same total weight and different lengths, the shorter one has visibly larger stones. Ask for stone size in millimetres and the stone count, not just the total weight, and compare those.
Before you order
- Measure below the wrist bone, at the warmest part of the day, and add 1.5cm.
- Send the measurement in millimetres, not a size word β numbers travel, words do not.
- Confirm the fastened bracelet will not pass over the hand.
- Ask for a 2β3cm extender, same metal and fineness, soldered end link.
- Ask for stone size in mm and stone count at that length, not just total carat weight.
- If it is a gift and you cannot measure, order with the extender rather than guessing.
Keep reading
Frequently asked questions
What length should a tennis bracelet be?
Measure the wrist snugly just below the wrist bone and add about 1.5cm. Most women take 17β18cm, or roughly 6.75β7 inches. Add 1cm instead for a closer fit, or 2cm if you want the bracelet to move.
Can a tennis bracelet be resized?
Not the way a ring can. Length is a fixed count of set links, so shortening removes stones and changes the total carat weight, while lengthening requires new links matched by eye to the existing ones. An extender chain is the better solution.
How do I know if a bracelet is too loose?
If the fastened bracelet slides over the knuckles of a relaxed hand, it is too long. That is the failure mode that loses bracelets, because it does not require the clasp to open at all β the piece works its way off while you are dressing.
Can I buy a tennis bracelet as a gift without knowing the wrist size?
Yes, if you order it with a 2β3cm extender. Ask for the extender in the same metal and fineness as the bracelet and for the end link to be soldered closed rather than left as an open jump ring.
Does length affect how big the stones look?
Yes. Total carat weight is divided across however many links fit the length, so at the same stated weight a longer bracelet has smaller individual stones. Compare stone size in millimetres and stone count rather than total weight alone.
Send us millimetres, and ask for the extender
Every bracelet is made to order in our own workshop in Surat, so length, stone count and clasp are set before anything is built.
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