About CalculateMyGold.com
A free, no-signup tool for anyone holding gold and wondering what it's actually worth.
Why we built this
Most people who inherit jewelry, clean out a drawer of broken chains, or walk into a pawn shop for the first time have no idea how to translate "22 karat, 12 grams" into a fair dollar figure. The math is not complicated — it is weight, purity, and the current spot price — but spot prices move every few seconds and the conversions between grams, troy ounces, tola, tael, and mesghal are their own small maze.
Existing calculators online tended to be covered in blinking banners, locked to a single currency, or asked for an email address before showing a number. We wanted something simpler: open the page, type your weight, pick your karat, see the answer. That is what CalculateMyGold.com is.
What the calculator does
- Melt-value estimate for gold, silver, and platinum, in 28 currencies and 15 weight units.
- Karat purity support from 8K through 24K, plus the regional systems used in India, the Middle East, and East Asia.
- Deal checker that compares an offered price — whether a shop is buying from you or selling to you — against the melt value, and tells you whether the offer is reasonable, excellent, or worth walking away from.
- Localized interface in fourteen languages, with RTL layout for Arabic and Persian readers.
How the math works
The core formula is the same one a refiner uses on the back of a napkin:
Melt value = Weight (g) × Purity (%) × Spot price per gram
Spot price is usually quoted per troy ounce (31.1035 grams), so the calculator converts first. Purity comes from the karat you select: 24K is 99.9% pure, 22K is 91.67%, 18K is 75%, 14K is 58.33%, and 10K is 41.67%. If you enter weight in tola, tael, pennyweight, or any other supported unit, the calculator converts that to grams before multiplying.
The result is the raw value of the pure metal content. It is not what a dealer will pay you, and it is not what a retail jeweler will charge you. It is the floor price against which those two numbers are set. Understanding that number is how you know whether the spread you are being offered is reasonable.
Where the prices come from
The spot prices shown on the site are pulled from publicly available market data feeds. Precious-metal markets trade nearly around the clock on weekdays, so the numbers refresh frequently during trading hours. When markets are closed, the calculator uses the last published close. We do not guarantee real-time accuracy — see our Terms of Service for the full disclaimer — but the numbers are close enough to tell you whether a $400 offer on your grandmother's chain is in the right neighborhood or wildly off.
Who this is for
People selling inherited jewelry. Travelers at gold souks in Dubai, Istanbul, or Bangkok who want to cross-check a quoted price. Collectors estimating the melt floor on bullion before a show. Anyone who has been handed a scrap bag and told "it is what it is." If that is you, bookmark the site — there is nothing to sign up for and nothing to pay.
What this is not
CalculateMyGold.com is not a dealer, a brokerage, or a trading platform. We do not buy or sell metal. We do not quote firm offers. We do not give investment advice. We are a calculator with better manners than most.
Feedback
If you spot a unit conversion that looks wrong, a translation that reads badly, or a karat system from your country that we missed, we want to hear about it. Drop us a line at hello@calculatemygold.com or use the contact form.