How much a gold chain weighs, and what that weight is worth
In short
A solid 4 mm Miami Cuban chain, 20 inches, in 14k weighs about 26 grams and holds 15.0 g of pure gold, worth $2,130.94 at spot. Weight grows with the square of the width: the same chain at 6 mm is roughly three times as heavy. Pick the style, width, length and karat below; the range shown is real, because two makers' 4 mm chains can differ by a fifth.
- 10k · 41.7% gold
- 14k · 58.5% gold
- 18k · 75% gold
- 22k · 91.6% gold
- 24k · 99.9% gold
Where the numbers come from
We did not weigh chains ourselves. The estimator is fitted to weights that sellers publish for specific solid 14k chains: a jeweler's reference table of rope, figaro, wheat and cable chains across widths and lengths, a listed 4 mm Miami Cuban at 20 to 28 inches (25.7 g at 20 inches, rising 1.3 g per inch), and a Cuban width guide that gives weight ranges by width at 22 inches. Between the listed widths we interpolate; beyond them we scale with width squared, which is how a chain of the same profile behaves. Other karats are scaled by alloy density: 10k is about 12% lighter than 14k for the same chain, 18k about 19% heavier, 22k about 36% heavier.
The honest error bar is about 20% either way. Link profile, how tightly it is made and whether the maker rounds up all move the number, and any chain sold as hollow or semi-hollow weighs roughly half of the solid figure. When the listing states a weight, trust the listing over this page.
Reference weights, solid 14k
| Style, width | 18 in | 20 in | 22 in | 24 in | Melt value, 20 in |
|---|---|---|---|---|---|
| Cable 1 mm | 1.9 | 2.1 | 2.3 | 2.5 | $175.79 |
| Rope 2 mm | 6.0 | 6.6 | 7.3 | 7.9 | $548.93 |
| Figaro 2 mm | 3.9 | 4.4 | 4.8 | 5.3 | $363.19 |
| Rope 3 mm | 11.6 | 12.9 | 14.2 | 15.5 | $1,068.01 |
| Wheat 3 mm | 8.7 | 9.6 | 10.6 | 11.5 | $797.69 |
| Cuban 4 mm | 23.1 | 25.7 | 28.3 | 30.8 | $2,131.04 |
| Rope 4 mm | 18.7 | 20.8 | 22.9 | 25.0 | $1,724.74 |
| Cuban 6 mm | 69.5 | 77.2 | 84.9 | 92.6 | $6,401.42 |
| Rope 6 mm | 37.3 | 41.4 | 45.5 | 49.7 | $3,432.89 |
| Cuban 8 mm | 118.8 | 132.0 | 145.2 | 158.4 | $10,945.44 |
Measuring width and length yourself
Width
Lay the chain flat and measure one link across its widest point with a ruler or, better, a caliper; do not measure the wire thickness. Sellers round up, so a "5 mm" chain often measures 4.6 to 4.8. Without a caliper, lay ten links side by side along a ruler and divide by ten.
Length
Clasp to end, including the clasp, laid straight on a ruler or tape. Chains are made to even inches; a chain that measures 19.5 is a 20 that has been shortened or a 20 with a compact clasp. Length is the easy half of the estimate; get the width right first.
Weight, if you can
A pocket scale reading to 0.1 g settles everything the estimator guesses at. Weigh the chain, compare with the table, and the ratio tells you whether it is solid (near 1), semi-hollow (about 0.5 to 0.7) or hollow (0.3 to 0.5).
Hollow versus solid, by the numbers
The estimator assumes solid unless you pick hollow, and the single most common reason a real chain weighs far less than the estimate is that it is hollow. Hollow chains are made from tubing or stamped shells and weigh a third to a half of a solid chain of the same look; semi-hollow, from thicker tubing, lands around 60 to 70%. A stated weight under about 60% of the solid estimate for the same width and length is the tell, whatever the title says. Hollow is not a defect, it is a way to have a wide look at a low price; the problems are that it dents, cannot be resoldered cleanly, and holds little gold. Style matters too: a hollow Cuban survives daily wear better than a hollow rope, because it has no thin strands to kink.
Width and length combinations that work
| Width | Lengths that suit it | Solid 14k weight range |
|---|---|---|
| 2–3 mm | 16–20 in | 5–13 g |
| 4–5 mm | 20–22 in | 26–60 g |
| 6–7 mm | 20–24 in | 75–140 g |
| 8–10 mm | 22–26 in | 130–250 g |
Wide chains want to sit lower on the chest, both for looks and because a wide chain at the base of the neck reads as a collar and is uncomfortable to turn in. The weight column is what those combinations cost in gold: at today's 14k price of $82.92 per gram, the 4 to 5 mm row is $2,155.92 to $4,975.20 of metal and the 8 to 10 mm row is $10,779.60 to $20,730.00, before any retail markup. Above about 60 grams, weight is felt all day; above 100, a solid chain is a deliberate choice.
Why weight is the number that matters
Two chains that look alike in a photo can differ threefold in gold content: one solid, one hollow; one 3 mm, one 4 mm. Retail price does not follow weight cleanly because labor, brand and margin sit on top, but resale value does, almost exactly. Before buying a chain online, divide the price by the stated grams and compare that per-gram price with today's melt value; a solid 14k chain at less than about 1.5 times melt is cheap, one at more than three times melt is paying for a name. Before selling, the same weight times the per-gram figure above is the floor of any fair offer.
Hollow chains are not a scam; they let a 6 mm look exist at a 3 mm price. They dent, they cannot be repaired by soldering as easily, and they hold about half the metal. A listing that gives width and length but no weight is usually hollow or plated.
Questions people ask
How much does a 4 mm Cuban link chain weigh?
About 1.3 grams per inch in solid 14k, straight from listed weights: 25.7 g at 20 inches, 28.4 at 22, 31 at 24, 36.3 at 28. In 18k add roughly a fifth; in 10k take a tenth off. A 4 mm Cuban listed under about 15 g at 20 inches is hollow, whatever the title says.
How much does a 20 inch gold chain weigh?
Between 2 grams and over 100, and width decides. At 20 inches in solid 14k: a 1 mm cable about 2 g, a 2 mm rope 6.6 g, a 3 mm rope 13 g, a 4 mm Cuban 26 g, a 6 mm Cuban about 77 g, an 8 mm Cuban roughly 130 g. Weight grows with the square of the width, so the step from 4 to 6 mm triples the gold, which is the surprise inside most price tags.
How much is a 30 gram 14k gold chain worth?
$2,487.48 in gold at today's spot: 30 g × 58.5% × $141.74. Retail, the same chain sells for two to four times that; at a buyer's counter it returns a share of it, perhaps $1,989.98 from a good refiner. The gap between those numbers is the cost of wearing it, and it is worth seeing before buying heavy.
Does an 18k chain weigh more than 14k?
About 19% more for the identical chain, because 18k alloy is denser, roughly 15.5 g/cm³ against 13 for 14k. Gold is far heavier than the copper and silver it is mixed with, so more gold means a heavier link of the same size. Since 18k also holds 28% more gold per gram, its melt value per chain runs about half again higher.
What is a good weight for a men's gold chain?
Without a pendant, 20 to 40 grams in 14k reads as a chain rather than a thread or a burden: a 3 to 4 mm rope or a 4 to 5 mm Cuban at 20 to 22 inches. With a 10 to 15 gram pendant, the chain should weigh at least as much as the pendant. Past about 60 grams the weight is felt all day and the gold alone runs beyond $4,975.20.
Why does my chain weigh less than the estimate?
Three usual reasons. It is hollow or semi-hollow, which halves the weight. The width was measured at the widest point of a link that is thinner than it looks. Or it is a lighter style sold with a Cuban's dimensions. If a seller's stated weight is 30% under the solid estimate, get the word solid in writing before paying solid prices.