Gold Calculator
Convert any weight of gold, silver, platinum, or palladium into its current USD value using live spot prices. Supports troy ounces, grams, kilograms, pennyweight, and tola.
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Calculating Karat Jewelry Instead?
If you’re working with 14K, 18K, or other karat purities, use our dedicated karat calculator that handles pure gold content automatically.
Open Karat Calculator →How the Gold Calculator Works
This calculator converts any weight of precious metal into its current USD value using live spot prices from global markets. Whether you’re trading bullion, evaluating an inheritance, calculating insurance coverage, or just curious about a coin’s worth, the math is the same: weight multiplied by the current per-unit spot price.
The spot price represents the immediate market value of pure metal — 99.99% pure gold, silver, platinum, or palladium. It updates continuously during global trading hours and serves as the universal reference for dealers, refiners, mints, and central banks worldwide. Learn more about how the gold spot price is set.
Supported Weight Units
| Unit | Conversion | Common Use |
|---|---|---|
| Troy Ounce | 31.1035 grams | Global standard for precious metals pricing |
| Gram | 0.03215 troy oz | Common in jewelry, small bars |
| Kilogram | 32.1507 troy oz | Large institutional bars (1kg = 32.15 oz) |
| Pennyweight (dwt) | 1.5552 grams | US jewelry trade standard |
| Tola | 11.6638 grams | Traditional South Asian gold weight |
Why Troy Ounces Differ From Regular Ounces
One of the most common sources of confusion in precious metals is the troy ounce versus the avoirdupois (regular) ounce. They are not the same. A troy ounce weighs 31.1035 grams, while a standard ounce weighs only 28.3495 grams — a difference of roughly 10%.
The troy system originated in medieval England and became the global standard for measuring precious metals because it offered greater precision for high-value materials. When you see gold quoted at “$2,000 per ounce,” that is always a troy ounce. Mistaking the two can lead to significant valuation errors.
Quick Conversion Reference
- 1 troy oz = 31.1035 grams = 1.0971 standard ounces
- 1 kilogram = 32.1507 troy oz = 1,000 grams
- 1 pound (avoirdupois) = 14.5833 troy oz = 453.592 grams
New to Precious Metals?
Understanding pricing is just the start. Learn how coins, bars, ETFs, and gold IRAs compare for long-term investors with our complete beginner’s guide.
Read the Beginner’s Guide →Practical Uses for the Gold Calculator
1. Verifying Dealer Offers
Before selling gold, calculate what the raw metal content is theoretically worth. Reputable dealers typically pay 90 to 98% of spot for investment-grade products and 70 to 90% for jewelry. If an offer is dramatically below this, walk away.
2. Insurance Valuation
Insurance companies often require current market value for precious metals coverage. Use this calculator to document the current value of your holdings, then save records with photos and receipts.
3. Tax and Estate Planning
Capital gains on precious metals are typically calculated based on the difference between purchase price and sale price. Knowing exact current value helps with tax planning, gifting strategies, and estate inventory.
4. Trading Decisions
Some investors track their position value in real time using calculators like this. Combined with technical analysis from our guide to reading gold charts, you can identify potential entry and exit points.
Frequently Asked Questions
How accurate is this calculator?
The calculation is mathematically exact for the given inputs. The spot price displayed is sourced from live market data via Metals.dev and updates hourly. Actual transaction prices may vary based on dealer markups, refining costs, and form premiums (e.g., coins typically cost more than spot, scrap pays less than spot).
Why does this calculator assume pure metal?
The spot price is always quoted for 99.99% pure metal. If you have alloyed gold (14K, 18K, etc.), use our karat calculator instead, which accounts for purity. For investment-grade bullion, this calculator gives you the correct value.
What’s the difference between troy ounce and regular ounce?
A troy ounce equals 31.1035 grams, while a regular (avoirdupois) ounce is 28.3495 grams. Precious metals are always priced in troy ounces. Confusing the two can result in a 10% valuation error.
Does this work for silver, platinum, and palladium too?
Yes. Click the metal buttons at the top to switch between gold, silver, platinum, and palladium. The calculator uses live spot prices for each metal from Metals.dev.
Why is gold sold above the spot price?
Gold products like coins, bars, and jewelry include premiums above spot to cover minting, distribution, dealer margin, and design value. American Gold Eagles typically trade at 5 to 8% above spot, while generic 1-oz bars trade closer to 2 to 4%. Selling back to dealers usually means receiving 90 to 98% of spot for investment-grade products.
How often does the spot price update?
The price displayed updates approximately every hour using cached data from Metals.dev. Spot metal markets trade nearly 24/7 during the global business week, so prices can change between updates. For real-time trading decisions, use direct market data from your broker or exchange.