Gold Value Calculator
Weight × (karat / 24) × spot price = estimated melt value.
Enter the weight, karat, and the current gold spot price per gram to estimate the melt value. The calculator supports grams, troy ounces, pennyweight, and grains, and shows the equivalent mass at other karats. It does not fetch live prices — you enter the rate you see.
Look up the current spot price per gram in your currency. The tool doesn’t fetch live prices — you enter what you see.
- Weight
- 10.000 g
- Karat
- 22K
- Purity
- 91.67%
- Pure gold
- 9.167 g
- Spot/g
- $85.00
- Value
- $779.17
- 9K
- 24.44 g
- 10K
- 22.00 g
- 12K
- 18.33 g
- 14K
- 15.71 g
- 18K
- 12.22 g
- 20K
- 11.00 g
- 21K
- 10.48 g
- 24K
- 9.17 g
How the value is calculated
value = (weight_in_grams) × (karat ÷ 24) × (spot_price_per_gram)
Dealers typically pay less than spot because they take a margin. Retail jewelry prices include making charges, design, and markup — this tool estimates the melt value, not the retail or jewelry resale price.
How to use
- Enter the weight of the piece and choose its unit.
- Pick the karat (9K, 10K, 14K, 18K, 22K, 24K, etc.).
- Enter today’s gold spot price per gram in your currency.
- Read the estimated melt value and the equivalent mass at other karats.
Examples
What users are actually trying to do
- ▸ Estimating resale value of inherited gold jewelry
- ▸ Sanity-checking a dealer offer against melt value
- ▸ Comparing 14K vs 18K vs 22K pricing for a purchase
- ▸ Converting between grams and troy ounces for imports/exports
- ▸ Learning how karat affects value
Common mistakes
- ! Expecting retail jewelry price to match melt value (it never does)
- ! Confusing troy ounces with regular (avoirdupois) ounces
- ! Using total weight instead of gold weight (stones and clasps do not count)
- ! Entering price per troy oz in the per-gram field
Before you trust the result
Check the inputs that matter most: dates, rates, units, costs, and any optional fields you skipped. A calculator can only work with the numbers entered here, so use the result as a decision check rather than a final answer when money, health, tax, legal, or safety consequences are involved.
If the result feels surprising, change one input at a time and watch which number moves. That usually shows the real lever behind the decision.
Limitations
- · No live price feed — user-entered spot price only
- · Melt value only — does not model design, making charges, or retail markup
- · Single-metal calculation — does not separate gemstones or non-gold components
- · No regional tax or buyer-margin modeling
- · Simple purity math — does not account for alloy-dependent density variations
Next up
Frequently asked questions
› Does this show the current gold price? Trust & accuracy
No. The tool does not fetch live market data. Look up today’s spot price per gram from a source you trust and enter it.
› How is gold value calculated? Definition
Multiply the weight in grams by the karat divided by 24 (the purity), then multiply by the spot price per gram. That gives you the melt value — the pure-gold content at market.
› What is my gold worth? Definition
The melt value is your piece’s pure-gold content at the current spot price. Dealers pay less than melt; jewelry retail is higher because of design and markup.
› How much is 1 gram of gold? Definition
1 gram of 24K gold is worth the current spot price per gram. Less-pure gold is worth a fraction — 22K is 91.67% of spot, 14K is 58.33%, 10K is 41.67%.
› Can I convert gold to cash? How-to
Yes, through licensed buyers, pawn shops, or refiners. Expect offers below melt value; get multiple quotes.
› What weight unit should I use? Comparison
Jewelry is usually measured in grams. Investment bullion is often quoted in troy ounces (1 troy oz ≈ 31.10 g). Antique US jewelry sometimes uses pennyweight (1 dwt ≈ 1.555 g).
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