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Necklace lengths explained: 16, 18, 20 and 24 inches

Necklace lengths explained: 16, 18, 20 and 24 inches

Necklace length is the single most common reason a piece looks wrong in person after looking right on screen. A model photograph tells you almost nothing about where a chain will sit on you. A tape measure tells you everything. This is a five-minute guide to getting it right the first time.

The standard US lengths

Necklaces in the United States are sold in inches, and almost everything falls into six sizes:

  • 14″ — collar. Sits tight around the base of the neck. Very close-fitting; sized carefully or not at all.
  • 16″ — choker. Sits at the base of the throat, at or just above the collarbone. This is the shortest length most people wear comfortably all day.
  • 18″ — princess. Sits on the collarbone or just below it. The default: if a listing does not state a length, 18″ is the most likely answer, and it is the safest gift length for an adult.
  • 20″ — matinee (short). Sits a couple of inches below the collarbone, on the upper chest. Good with a crew neck.
  • 24″ — matinee (long). Sits mid-chest, roughly at bra line. Works over a jumper or a shirt.
  • 30″ and longer — opera and rope. Sits at or below the sternum. Usually a statement piece, or something to double up.

Measure yourself in two minutes

You need a soft tape measure, or a piece of string and a ruler.

  1. Wrap the tape around your neck where a snug collar would sit. Note that number — for most adults it is 13–16 inches. That is your collar measurement, not your necklace size.
  2. Add 2 inches for a choker that sits comfortably, 4 inches for a chain on the collarbone, 6 inches to sit below it.
  3. Better still: hold the tape against your chest, hanging in a loop from your neck, and look in a mirror. Move the loop up and down until the low point is where you want a pendant to sit. Then measure the whole loop. That number is the necklace length you want.

That last method takes the guesswork out entirely, and it is the one to use if you are buying a pendant rather than a plain chain.

Things that shift where a chain sits

Neck circumference. Two people can order the same 18″ chain and have it land two inches apart. If your collar measurement is above 16 inches, size up one step from whatever a length chart suggests.

Pendant weight and bail length. A heavy pendant on a fine chain pulls the whole necklace down and forward. Add the height of the pendant plus its bail to your planned drop — a 1.5″ pendant on an 18″ chain hangs roughly where a 19–20″ necklace would sit empty.

Chain style. A flat snake or herringbone chain lies against the skin and sits exactly where the arithmetic says. A rope or box chain has bulk and rides slightly higher.

What you are wearing. 16″ disappears under a polo neck. 20″ and 24″ are the lengths that read clearly over knitwear.

Layering without tangles

The rule that works: leave at least 2 inches between each layer, and vary the chain thickness. 16″ + 18″ + 20″ is the classic set. Three chains of identical weight at 16″, 17″ and 18″ will wrap around each other within an hour of wear.

If you already own one chain and want to add to it, measure the one you own rather than trusting the length it was sold as — extenders, repairs and clasp replacements all change it.

Buying for someone else

If you cannot measure them, buy 18″. It suits the largest range of neck sizes and necklines, and it is the length most people already own something in, so it will not look out of place next to the rest of their jewellery.

Where a piece includes an extender chain — often 2 inches — the listing will say so, and that gives you a range rather than a single length. An 18″ chain with a 2″ extender covers 18–20″, which is a much safer gift than either length alone.

What our listings tell you

Every necklace on Rawkology states its chain length in inches, and where the manufacturer supplies them, the pendant dimensions too. Where an extender is included we list the range. If a measurement you need is missing from a page, email support@rawkology.com and we will measure the piece in the warehouse and reply with the number.

If it still arrives at the wrong length, you have 30 days from delivery to return it. Full details are on our returns page.

Shopping for a piece now?

Every listing states its material, its measurements and its barcode. Free FedEx shipping to the United States, nothing to pay on delivery, 30 days to return.

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