Chain Weight Estimate Calculator
A jewelry chain's weight scales with its length, so if you know how much a chain weighs per unit of length you can estimate the weight of any length of the same style. This chain weight calculator multiplies the chain length in centimeters by the weight per centimeter in grams to give the total weight. The weight per centimeter depends on the chain style, the link size, and the metal, so a heavy curb chain weighs far more per centimeter than a fine cable chain, and a gold chain weighs more than the same style in silver. You can find the weight per centimeter by weighing a known length of the same chain and dividing, or from a supplier's specification. Estimating chain weight matters because precious metal jewelry is priced largely by metal weight, so the weight drives the metal value. Every figure here is computed deterministically from your inputs, so the same length and weight per centimeter always return the same total. Enter the length and weight per centimeter below to estimate a chain's weight, compare a quote, or feed the result into a scrap value calculation, with a worked example that reconciles to the calculator defaults.
Chain weight equals the length times the weight per centimeter. A 45 cm chain weighing 0.85 g per centimeter has a total weight of 38.25 g.
Chain weight formula
total weight = chain length x weight per centimeter
length in centimeters, weight per centimeter in grams
weight per cm depends on chain style, link size and metal
Chain weight is proportional to length for a given style and metal. Multiplying the length by the weight per centimeter gives the total weight, which is what precious metal pricing is largely based on.
Worked example
Take a chain 45 centimeters long in a style that weighs 0.85 grams per centimeter.
- Weight per centimeter: 0.85 grams
- Total weight: 45 x 0.85 = 38.25 grams
The chain weighs about 38.25 grams, which matches the calculator's default inputs exactly. Weigh the finished chain for an exact figure before valuing the metal.
Chain Weight Estimate Calculator: frequently asked questions
How do I find the weight per centimeter?
Weigh a known length of the same chain style on an accurate scale and divide the weight by the length. For example, a 10 centimeter sample weighing 8.5 grams gives 0.85 grams per centimeter. Suppliers often list this figure in their specifications.
Why does chain style change the weight?
Heavier styles like curb, Figaro, or rope chains use thicker links and more metal per centimeter than fine cable or box chains. The weight per centimeter captures this, so always measure or look up the figure for the specific style you have.
Does the metal affect the weight?
Yes. The same chain style in gold weighs more than in silver because gold is denser. The weight per centimeter you enter already reflects the metal, so use a figure measured on a chain of the same style and metal.
How does weight relate to value?
Precious metal jewelry is priced largely by its metal weight and purity. Once you estimate the chain weight, you can multiply by the purity fraction and the metal spot price to estimate the metal value, as a scrap value calculator does.
Is this exact?
It is an estimate based on a representative weight per centimeter. Real chains vary slightly with clasp weight, link tolerances, and finishing. For an exact figure, weigh the complete chain, including its clasp, on a calibrated scale.
Official sources
- Coin metal content and precious-metal specifications: US Mint. As at 25 June 2026.
Reviewed by the CalculatorHub team, edited by James Graham, 25 June 2026. See our methodology. This is general information, not financial, tax, legal or investment advice.