Value any amount of gold. This free gold price calculator turns the spot price, weight and karat purity into the metal’s value, pure gold content and price per gram.
Enter today’s spot price from a market source. Dealers add a premium when buying or selling — this is the raw metal value.
How the Gold Price Calculator Works
Gold is traded by the troy ounce, but jewelry, coins, and bars come in every weight unit and purity level imaginable. This calculator converts your item's weight and karat purity into pure gold content, then prices that pure content against today's spot price to give you the underlying metal value.
Formula: Grams = Weight × unit conversion factor (1 troy ounce = 31.1034768 grams). Pure gold grams = Grams × Purity. Price per gram (pure) = Spot price ÷ 31.1034768. Gold value = Pure gold grams × Price per gram (pure).
- Spot price — Today's market price for one troy ounce of pure (24K) gold
- Weight — The weight of your gold item, in the unit you select
- Unit — Grams, troy ounces, ounces, kilograms, pennyweight, or tola
- Purity (karat) — 24K, 22K, 18K, 14K, or 10K, each mapped to a decimal purity fraction (e.g., 18K = 0.75)
- Pure gold content — The weight of actual gold once alloy metals are excluded
Example Scenarios
| Spot Price (per ozt) | Weight | Purity | Gold Value |
|---|---|---|---|
| $2,000 | 10 g | 24K | ≈$642 |
| $2,000 | 1 troy oz | 18K | $1,500 |
| $2,400 | 50 g | 14K | ≈$2,257 |
| $1,900 | 1 kg | 22K | ≈$55,995 |
| $2,200 | 5 tola | 24K | ≈$4,121 |
Gold Price Calculator FAQ
Where do I find today's gold spot price?
Spot price is published by financial news sites, precious metals dealers, and commodities exchanges, and it updates continuously during market hours. This calculator doesn't fetch a live price for you — you enter the current figure yourself from a market source you trust.Why does 24K show as 0.999 purity instead of 1.000?
Even gold marked as 24K or "pure" typically contains trace impurities in commercial refining, so the accepted purity standard used here is 99.9% rather than a theoretical 100%. It's the standard most bullion and refiners quote.Does the calculated value include what a dealer would actually pay me?
No. This is the raw melt value of the gold content only. Dealers buying scrap or jewelry typically pay below this figure to cover refining costs and profit margin, while retail jewelry sells above it for craftsmanship and branding.What's the difference between a troy ounce and a regular ounce?
A troy ounce (about 31.1 grams) is the unit gold is priced in and is heavier than a standard avoirdupois ounce (about 28.35 grams) used for everyday weight. Using the wrong ounce type will noticeably skew your calculated value.How do I value gold that's a mix of karats, like a ring with a clasp?
Weigh and calculate each component separately at its own karat purity, then add the resulting values together. Mixed-purity items can't be accurately valued with a single blended karat entry unless you already know the item's overall average purity.What is a tola and why is it an option?
A tola (about 11.66 grams) is a traditional weight unit widely used for gold in South Asia and parts of the Middle East. It's included here so users in regions that price gold by the tola don't have to convert units manually.Related Calculators
Gold is often held as one piece of a bigger financial picture — track how it fits into your overall assets with the net worth calculator, compare its return against other holdings using the investment growth calculator, or convert a foreign spot price into your home currency first with the currency converter calculator.