Gold Calculator: Gram, Coin and Ounce Values
See what a gram of gold is worth right now, and learn on one page how coin weights, carat and workmanship change what you actually pay.
Prices are indicative — not a dealing price and not investment advice.
Gold price calculator
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For information only — not credit, investment or tax advice.
The price of a gram of gold is not an independent number — it is the product of two: the international ounce price and the dollar exchange rate. Because one troy ounce equals 31.1035 grams, the gram value is the ounce price times the dollar rate, divided by 31.1035. Even when the ounce is flat in dollars, a weaker local currency makes a gram more expensive — much of what looks like "gold going up" is these two effects added together.
The converter on this page shows the current value of a gram. The tables below answer the questions that actually come up at the jeweller's: how many grams is a quarter coin, what 22 carat means, and why workmanship is not paid back when you sell. Values here are indicative; a jeweller's buy and sell prices differ because of workmanship and spread.
How it works
- 1
Enter the amount
Type how many grams of gold you want the value for.
- 2
Pick the currency
Convert gram gold into lira, dollars, euro or pounds — and back the other way.
- 3
Check the source
The source and update time appear under the result; allow for workmanship when comparing with a jeweller's price.
Why Ryna AI
- Live gram gold: the value is derived from the ounce price and the dollar rate, with the source and update time shown under the result.
- Weight table: the standard gram weights of Turkish quarter, half, full and Republic coins in one place.
- Carat and workmanship: the purity of 22, 18 and 14 carat, and why workmanship behaves differently when you buy and when you sell.
- Private: the calculation runs in your browser and the amount you type is never sent to a server.
How many grams is a quarter coin? Turkish coin weights
The standard weights used in Türkiye are: quarter (çeyrek) 1.75 g, half (yarım) 3.50 g, full (tam/ziynet) 7.00 g, and Republic (cumhuriyet) or Ata coins 7.216 g. These coins are 22 carat, so about 91.6% of the weight is pure gold: a quarter holds roughly 1.60 g of fine gold and a Republic coin roughly 6.61 g. One troy ounce is 31.1035 g. Older coins or coins from different mints can deviate slightly; the jeweller's scale is the definitive figure.
What carat means, and why workmanship is not paid back
Carat is the share of pure gold in the alloy: 24 carat is pure, 22 carat is 916/1000, 18 carat 750/1000 and 14 carat 585/1000. The gold content of a bracelet is gram price × weight × purity; on top of that a jeweller adds workmanship. When you sell, the price is usually offered on the fine-gold content alone — workmanship is included in what you paid but not in what you receive. That is why jewellery returns less than a bar or coin of the same weight.
Frequently asked questions
How is the gram gold price set?
By multiplying the international ounce price by the dollar rate and dividing by 31.1035. That is why gram gold moves with both the ounce and the exchange rate: even with a flat ounce, a weaker currency makes a gram more expensive.
How many grams is a quarter (çeyrek) coin?
A standard quarter coin is 1.75 g at 22 carat, holding roughly 1.60 g of fine gold. Half is 3.50 g, full is 7.00 g and a Republic coin is 7.216 g.
How many grams is an ounce of gold?
One troy ounce is 31.1035 grams. Gold trades internationally in dollars per ounce, and the gram value is found by dividing by that number.
How do you work out the price of a 22-carat bracelet?
Gram gold price × the bracelet's weight in grams × 0.916 gives the gold content value. A jeweller adds workmanship on top of that, and the workmanship rate varies by piece and workshop.
Do you get the workmanship back when selling gold?
Usually not. The workmanship you paid on purchase is not reflected in the sale price — a jeweller typically pays for the fine-gold content only. That is why jewellery returns less than a coin or bar of the same weight.
Why does this price differ from my jeweller's?
The value here is an indicative price derived from the international ounce price and the exchange rate. A jeweller adds workmanship, margin and a buy-sell spread, and updates prices at their own intervals during the day.