Curious about the current value of your precious metal investments?
Use our powerful calculators to find out how much your gold and silver are worth today.
You can also use our Premium Calculator to see the premium you’re paying on bullion and numismatic coins — compare retail prices with spot prices to better understand your investment and make informed decisions.
Precious Metal Calculators
Curious about the current value of your precious metal investments?
Use our powerful calculators to find out how much your gold and silver are worth today.
You can also use our Premium Calculator to see the premium you’re paying on bullion and numismatic coins — compare retail prices with spot prices to better understand your investment and make informed decisions.
Gold Coin Calculator
Enter Gold Spot Price
Type the current gold spot price per ounce in USD.
You can check live prices from a reliable market source before entering.
Select Gold Weight
Use the slider to choose the weight of your gold coin or bar in ounces.
Note: 1 ounce ≈ 31.1 grams.
Enter USD/JPY Exchange Rate
Type the latest USD to JPY exchange rate.
You can get this from your bank, forex sites, or financial news.
View the Results
Price in USD: Shows the value of your gold based on spot price and weight.
Price in JPY: Automatically converts the USD value into Japanese yen using the exchange rate you entered.
Tip for Investors
Keep your spot price and exchange rate updated for the most accurate valuation.
Gold Coin Calculator
Gold is one of the most fundamental assets, trusted by people as a "store of value" since ancient times. From central banks to investors and private collectors, gold is used as insurance against inflation, currency instability, and geopolitical risks. This section provides common investor questions, FAQs, and examples using calculators.
1. What is the appeal of investing in gold?
History of store of value: A universal asset trusted for over 5,000 years.
Inflation prevention: Prices tend to rise when the purchasing power of a currency declines.
Diversification effect: Low correlation with stocks and bonds reduces overall portfolio risk.
High liquidity: Buy and sell worldwide. From small investments to hundreds of kilos of bullion.
2. Purity of gold and typical types
24K gold (.9999 pure gold): The highest purity, used in coins such as the Maple Leaf and Vienna Philharmonic gold coins.
22K gold (.9167): American Gold Eagle, Krugerrand, etc. Excellent durability.
90% Gold Coins (Historical Coins): Old gold coins from the United States and Japan. Suitable for both investment and collection.
3. Examples using computers
Example 1: 1 oz Gold Maple Leaf spot price $2,000, exchange rate 150 yen/USD → ¥300,000.
Example 2: 10 oz bar
$2,000 × 10 = $20,000 → ¥3,000,000.Example 3: Antique gold coins (e.g., 5 yen gold coins from the Meiji era)
Enter the weight and purity to find out the current value.
4. Frequently Asked Questions (FAQ)
Q: Is physical gold or an ETF better?
A: ETFs have high liquidity, but they lack the security of physical assets. Physical assets are more effective for long-term holding and risk diversification.
Q: Should I have my gold coins appraised?
A: Bullion coins are not required. Collectible old coins may fetch a premium if certified by PCGS/NGC.
Q: Which is more efficient: small gold coins or large bars?
A: Large bars have a lower premium per gram. Small coins are more liquid. A combination of both is ideal.
5. Advice for investors
Always keep in mind "spot price + premium."
Check the purchase price beforehand.
For long-term holding, 24K pure gold coins are the best.
If you want to save small amounts on a daily basis, small gold coins such as 1/10 ounce coins are also effective.