The value of the gold content in an item is not determined by weight alone. Ten grams of 22K gold and ten grams of 18K gold do not represent the same amount of pure gold, so a useful estimate must account for purity as well as weight.
The core relationship
When the reference rate is for 24K gold, a simplified gold-content calculation is: weight × purity ratio × 24K reference rate.
The three inputs behind the estimate
Weight
The amount of gold entered in grams.
Purity
The selected karat determines the pure-gold proportion used in the calculation.
Reference rate
The 24K per-gram rate provides the monetary reference for the estimate.
Why purity changes the result
Karat expresses gold purity on a 24-part scale. For calculation purposes, 22K uses the ratio 22 ÷ 24, while 18K uses 18 ÷ 24. The lower the ratio, the less equivalent pure-gold content there is for the same gross weight.
If you want to understand that conversion in more detail, read the Gold Purity guide.
Estimating the gold content value of 20g of 22K gold
Assume a hypothetical 24K reference rate of ₹10,000 per gram.
22K purity ratio = 22 ÷ 24 ≈ 0.9167
Equivalent pure-gold content: 20 × 22 ÷ 24 ≈ 18.33g
Indicative gold-content value: 18.33 × ₹10,000 ≈ ₹183,333.
The rate in this example is intentionally hypothetical. Use the calculator for a current reference-rate-based estimate.
Gold-content value is not the final jewellery price
Gold-content value isolates the estimated value represented by gold weight and purity.
Jewellery pricing can include making charges, GST and other commercial components.
The reference rate used by an informational calculator may differ from a specific jeweller's quoted rate.
To understand the additional jewellery-cost components, continue with the Making Charges and GST guide.
Gold-content value is also not a guaranteed resale quote
A theoretical calculation cannot inspect an item. When old gold is physically evaluated, an actual buyer may consider verified purity, measured weight, deductions and its own commercial terms.
Gold Ledger therefore treats calculated value as an indicative reference, not a promise of what a jeweller, lender or gold buyer will pay.
Frequently asked questions
What information is needed to calculate gold value?
A basic gold-content estimate needs the gold weight, its stated purity or karat, and a reference gold rate. The calculation should also make clear which purity the quoted reference rate represents.
Why is a 24K rate adjusted for 22K gold?
22K represents a lower pure-gold proportion than the 24K reference. Gold Ledger therefore applies the 22/24 karat ratio when estimating the gold-content value from a 24K reference rate.
Is calculated gold value the same as jewellery price?
No. A jewellery retail price can include making charges, taxes and other commercial components in addition to the underlying gold-content value.
Is calculated gold value the amount I will receive when selling gold?
Not necessarily. An actual resale or old-gold quote can depend on physical purity assessment, deductions, buyer terms and other commercial factors.