Free bracelet size calculator · No sign-up

Your wrist is not your bracelet size.

Every bracelet is longer than the wrist it goes on — by 13 mm, 19 mm or 25 mm depending on how you want it to sit. Measure your wrist, pick the fit, and get the length to actually order.

Step 1. Calibrate the screen — or reuse the scale you set on the ring sizer.

Calibrate against

Screen scale: — CSS pixels per mm

Step 2. Wrap a paper strip round your wrist, mark the overlap, then lay it on the ruler below.

Wrist (mm)

How should it sit?

Bracelet length to order

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How to measure your wrist

01
Measure your wrist
Wrap a strip of paper around your wrist just below the wrist bone, where a bracelet naturally sits. Snug, not tight. Mark where the end overlaps, then measure to the mark against the calibrated ruler above — or with any ruler, in millimetres.
02
Choose how you want it to sit
A bracelet is never the length of your wrist. Snug adds about 13 mm, comfortable about 19 mm, loose about 25 mm. That spread is more than a whole retailer size, which is why the same wrist gets three different answers.
03
Read the length, then check it against the seller
You get a finished length in inches and centimetres, plus the S/M/L label it usually corresponds to. Those letters aren't standardised between brands, so quote the length in millimetres when you order.

Don't use string or thread. Both stretch under tension, and a stretched loop reads one to two sizes large — the single most common reason a bracelet arrives too big.

How much room to add

This is the number most size guides leave out, and it matters more than the wrist measurement itself.

Snug

+13 mm

Sits close to the wrist with almost no movement. Usual for tennis bracelets and fine chains where a loose fit looks wrong.

Comfortable

+19 mm

The default for most bracelets. Moves a little, clears the wrist bone, doesn't slide over the hand.

Loose

+25 mm

Drapes and slides down toward the hand. Usual for charm bracelets, where the weight is meant to hang.

Bangle (rigid)

different

A bangle has no clasp, so it is not sized from the wrist at all — it has to pass over the widest part of the hand. Measure the hand, not the wrist.

Bracelet size chart

Wrist circumference against the finished bracelet length each fit needs. Every figure is the wrist plus that style's allowance — nothing here is a copied table.

Wrist circumference converted to bracelet length for snug, comfortable and loose fits
Wrist (mm)	Wrist (in)	Snug	Comfortable	Loose
130	5.12″	5.63″	5.87″	6.10″
135	5.31″	5.83″	6.06″	6.30″
140	5.51″	6.02″	6.26″	6.50″
145	5.71″	6.22″	6.46″	6.69″
150	5.91″	6.42″	6.65″	6.89″
155	6.10″	6.61″	6.85″	7.09″
160	6.30″	6.81″	7.05″	7.28″
165	6.50″	7.01″	7.24″	7.48″
170	6.69″	7.20″	7.44″	7.68″
175	6.89″	7.40″	7.64″	7.87″
180	7.09″	7.60″	7.83″	8.07″
185	7.28″	7.80″	8.03″	8.27″
190	7.48″	7.99″	8.23″	8.46″
195	7.68″	8.19″	8.43″	8.66″
200	7.87″	8.39″	8.62″	8.86″
205	8.07″	8.58″	8.82″	9.06″
210	8.27″	8.78″	9.02″	9.25″

What S, M and L mean

Retailer labels, expressed as the finished length they usually represent. They are not standardised — one brand's medium is another's small — so order by length whenever you're given the choice.

XS 6.0–6.5″
S 6.5–7.0″
M 7.0–7.5″
L 7.5–8.0″
XL 8.0–9.0″

Bracelet sizing questions

How do I measure my wrist for a bracelet?

Wrap a strip of paper around your wrist just below the wrist bone — the narrow part, where a bracelet settles. Pull it snug but not tight, mark where the end overlaps, lay it flat and measure to the mark. That length is your wrist circumference. Avoid string or thread: both stretch, and a stretched loop reads one to two sizes large. A tailor's soft tape works too, held with the same light tension.

Should a bracelet be the same size as my wrist?

No, and this is the mistake that causes most returns. A bracelet cut to your exact wrist measurement won't clear your hand and will sit like a tourniquet. Every bracelet includes an allowance on top of the wrist: roughly 13 mm for a snug fit, 19 mm for a comfortable one, 25 mm for a loose drape. The difference between snug and loose is more than a full retailer size.

What is the average bracelet size?

Most adult women take 7 to 7.5 inches (about 178 to 190 mm) and most adult men 8 to 8.5 inches (about 203 to 216 mm), measured as finished bracelet length rather than wrist. Treat those as a fallback for a gift you genuinely cannot measure for — wrist circumference varies far more between people than the averages suggest.

How do I size a bangle, which has no clasp?

Differently, because a bangle is rigid and has to pass over your hand rather than sit around your wrist. Press your thumb into your palm as if putting a bangle on, then measure around the widest part of that compressed hand. Divide that circumference by 3.1416 to get the inside diameter you need. Sizing a bangle from the wrist gives you one you can't get on.

What do XS, S, M and L mean for bracelets?

They map roughly to finished lengths — XS around 6 to 6.5 inches, S 6.5 to 7, M 7 to 7.5, L 7.5 to 8, XL 8 to 9 — but they are not standardised. One brand's medium is another's small. Whenever a seller gives you the choice, order by length in inches or millimetres rather than by letter.

How accurate is measuring a wrist on screen?

Expect about ±4 mm on the finished length once the screen is calibrated. Two things limit it: the calibration itself, and the fact that a wrist is soft — how firmly you pull the paper strip changes the reading more than it would on a finger. Measuring twice and taking the middle value is worth the extra thirty seconds.

When should I measure my wrist?

Late in the day, at normal room temperature. Wrists swell slightly with heat, salt, exercise and long flights, and are at their smallest first thing in the morning. Measuring at your daily average gives a bracelet that fits for most of your waking hours rather than one that's right for an hour.