Gold Calculator
Enter any amount, purity, weight and currency to value your gold using the current live spot rate.
Gold Calculator
Calculate the value of any amount of gold in any purity and currency.
Estimated value
$139.66
$139.66 per gram at selected purity
Methodology
How we calculate the price
- We fetch the international spot gold price (XAU/USD) live from gold-api.com + xaus.com, with automatic failover between providers.
- The spot rate is converted into the local currency using live exchange rates, then scaled by purity (24K, 22K, 18K…) and by weight (gram, tola, ounce, kilogram, baht).
- The result is the pure spot value. Retail counters may add dealer premium, tax and making charges — the number here is the underlying benchmark.
Gold purity reference
The fine-gold fraction each karat represents — this is what the calculator applies to the spot price.
| Karat | Fineness | % pure gold |
|---|---|---|
| 24K | 999.9 | 99.99% |
| 22K | 916.7 | 91.67% |
| 21K | 875 | 87.50% |
| 18K | 750 | 75.00% |
| 14K | 583.3 | 58.33% |
| 10K | 416.7 | 41.67% |
Weight unit reference
Gram equivalents for every weight unit the calculator supports.
| Unit | Grams |
|---|---|
| Gram (g) | 1.0000 g |
| Troy Ounce (oz t) | 31.1035 g |
| Tola (tola) | 11.6638 g |
| Kilogram (kg) | 1000.0000 g |
| Baht (baht) | 15.2440 g |
Gold Calculator — FAQs
How does this gold calculator work?
It takes the live international spot price of gold (XAU/USD), scales it by the purity you select (24K, 22K, 21K, 18K, 14K or 10K), converts to your chosen weight unit, then converts to your chosen currency using the current exchange rate. The result is the underlying spot value of the gold itself.
Does the calculated value include tax or making charges?
No. This is the pure spot-derived value of the gold content only. Retail purchases typically add a dealer premium, applicable tax or duty, and — for jewellery — a making charge on top of this figure.
Why do different purities give different values for the same weight?
Purity (karat) measures how much of a piece is actually gold versus other metals. 24K is 99.99% fine gold; 22K is 91.67% fine; 18K is 75% fine, and so on. A lower karat contains proportionally less fine gold per gram, so it's worth less at the same spot price.