Necklace Length Chart for Retailers: 14 to 30 Inches in CM

A necklace length chart for a shop counter needs only seven numbers: 14, 16, 18, 20, 22, 24 and 30 inches. Those are the lengths customers ask for by name, and they are the lengths chain suppliers cut to. The catch for a retailer buying from Asian factories is that chains are made in round centimetres, not round inches, so the "18-inch" chain on your tray is usually a 45 cm chain that measures 17.7 inches. This necklace length guide gives the chart in both units, says what each length is for and who buys it, and shows how the lengths are actually distributed across a live wholesale catalogue of 925 sterling silver and moissanite necklaces.

Necklace length chart: inches, centimetres and where each one sits

One inch is exactly 2.54 cm. Necklace length is measured end to end with the chain laid flat and the clasp closed, clasp included. A pendant hangs below that line by the height of the pendant and its bail, so a 2 cm pendant on an 18-inch chain reads lower on the body than the chain alone.

The names are a convention, not a standard. One widely used reference puts collar at 35 to 41 cm (14 to 16 in), princess at 45 to 50 cm (18 to 20 in), matinee at 56 to 58 cm (22 to 23 in) and opera at about 75 cm (30 in), with anything longer called a rope or lariat. Other charts call 16 inches a choker and stretch princess down to 17. That is why the inch number belongs on your price tag and the name does not. A customer who says "princess length" and a customer who says "18 inches" are usually asking for the same chain, but only the second one can be checked with a tape measure.

The centimetre problem: why your 18-inch chain is 17.7 inches

Chain is cut and priced by the centimetre in most of the factories that supply the wholesale trade. Every length option in the catalogue data below is a round centimetre figure: 35, 40, 41, 45, 50, 55, 60, 65, 70 and 75 cm. None of them is a round inch. One moissanite tennis necklace supplier even writes both on its option list, "45cm/17.7inch" and "50cm/19.68inch", which is the honest version of what most listings round off to 18 and 20.

For a retailer this has three practical consequences:

• Label what you measured. If you tag a 45 cm chain as 18 inches, you have rounded up by 0.3 inches. Most customers will never notice; a customer who returns it because "it sits higher than my old 18-inch" will. Tagging it "45 cm / 17.7 in" removes the argument.
• The gap grows with length. 45 cm is 0.3 inches short of 18. 60 cm is 0.4 inches short of 24, and 75 cm is 0.5 inches short of 30. On an opera-length chain that is 1.2 cm of chain the customer may expect and not get.
• An extender settles the in-between sizes. Many pendant necklaces ship as "40 + 5 cm": a 40 cm chain with a 5 cm extension chain, wearable anywhere from 15.7 to 17.7 inches. That one product covers both the 16-inch and the 18-inch customer.

What each necklace length is for, and who buys it

• 14 inches (35 cm). A fitted collar length. It suits tennis-style and beaded chokers and is the length most likely to be too tight, because neck size varies far more than the chart admits. Stock it in small numbers and offer it in adjustable styles where you can.
• 16 inches (40 to 41 cm). The base-of-neck length for small pendants and solitaires, popular under open collars.
• 18 inches (45 cm). The default. A pendant on an 18-inch chain lands on or just below the collarbone on most adults, which is where most pendants are designed to be seen. If a customer does not know what length they want, this is the answer.
• 20 inches (50 cm). The second most useful women's length, and the shortest length many men will wear. It clears a crew neckline and gives a larger pendant room to hang.
• 22 inches (55 cm). The core men's chain length and a good layering length for women, worn under or over a shirt collar.
• 24 inches (60 cm). Men's chains and statement pendants. Long enough to wear over a jumper; the usual top length for men's curb and Cuban link chains.
• 30 inches (75 cm). Opera length: long single strands, layered looks, or a chain doubled into two shorter strands. Fewer customers ask for it, but it lets one chain do two jobs.

Layering works best with a 2-inch step between strands: 16, 18 and 20 inches is the classic three-chain stack. Stocking those three lengths of the same chain style lets a customer build the whole stack from one display.

How necklace lengths are distributed in a real wholesale catalogue

On 2 October 2026 we counted the length records on every published necklace in the AdornTrade 925 sterling silver and moissanite necklace categories. The length shown on each listing comes from the supplier's own product record.

179 of the 205 necklaces that carry a length record, 87%, sit in the 41–50 cm band, which is 16.1 to 19.7 inches. That is the pendant-necklace world: the supply is built around the collarbone, and the 16-to-18-inch customer is the one it was made for. The current counts are 243 silver and 135 moissanite necklaces; browse them on the 925 sterling silver necklaces and moissanite necklaces shelves.

Longer lengths come from chains sold with length as a selectable option. These are the ones to use when a customer asks for a specific number:

Prices are single-piece prices on 2 October 2026; they move with the exchange rate, and the 3-piece and 8-piece tiers are lower. The pattern is what matters for planning: on the 3 mm curb chain each extra 5 cm adds $5.42, and on the 4 mm diamond-cut curb each extra 5 cm adds roughly $10. Solid chain is priced close to linearly by length, so a 24-inch men's chain costs about a third more than the 18-inch version of the same chain, not the same price.

Which necklace lengths a retailer should stock

A starting rule that works for most small shops:

• Pendant necklaces: one length, 18 inches (45 cm), or 16 to 18 on an extender. That is where the supply is, and it fits the most customers. Do not split a pendant style across lengths until it has sold through once.
• Women's chains sold alone: 16, 18 and 20 inches. Three lengths of one style supports layering and covers the size question at the counter.
• Men's chains: 20, 22 and 24 inches (50, 55 and 60 cm). Weight the order toward 22.
• Tennis necklaces: 16 and 18 inches. A tennis line is usually worn close to the neck, and every stone-set centimetre costs money: on the moissanite tennis necklace above, each extra 5 cm adds about $20 at the 1-piece price.
• One or two 30-inch chains for customers who layer or double their chains, if your display has room for a long piece.

For a first order of a new chain style, a 1-2-1 split across three lengths (for example one 16, two 18 and one 20) keeps the core length in stock without tying money up in the ends of the range. The 925 sterling silver necklaces wholesale page lists the current silver necklace range by style, and the ring size guide covers the same metric-versus-US problem for rings.

A printable necklace size chart for customers

For the customer side of the counter, the chart can be shorter. These are the numbers worth printing on a card next to a chain display:

• 16 in / 40 cm — base of the neck
• 18 in / 45 cm — on the collarbone (the most common length)
• 20 in / 50 cm — just below the collarbone
• 22 in / 55 cm — upper chest
• 24 in / 60 cm — mid chest
• 30 in / 75 cm — below the bust, or doubled

The quickest fitting test needs no chart at all: lay a piece of string around the customer's neck where they want the necklace to fall, then measure the string. Add 2 inches (5 cm) for a chain that should sit loosely rather than lie flat. That number, not the name of the length, is what goes on the order.

FAQ

What is the most popular necklace length?

18 inches (45 cm). It sits on the collarbone of most adults, and most pendant necklaces are made for it. In the catalogue counted above, 87% of necklaces with a length record fall in the 41–50 cm band that contains it.

Is a 45 cm necklace the same as 18 inches?

Close but not equal. 45 cm is 17.7 inches; 18 inches is 45.7 cm. The difference is 0.7 cm, small enough that the trade sells 45 cm as 18-inch, large enough that you should tag it with the real figure.

What length chain do men usually wear?

20 to 24 inches (50 to 60 cm), with 22 inches the most common choice. Shorter men's chains sit tight against a thicker neck.

How is necklace length measured?

End to end, laid flat, with the clasp closed and included. A pendant hangs below the chain by its own height plus the bail.

What length is a choker?

Usually 14 to 16 inches (35 to 41 cm), though some references reserve "choker" for 12 to 13 inches and call 14 to 16 a collar.