Calculate Price of Gold – Loan calculator

Gold Price Calculator

Use this calculator to estimate the current market value of your gold based on its weight, purity, and the prevailing market price of pure gold.

Gold Weight: Grams (g) Troy Ounces (ozt) Avoirdupois Ounces (oz)

Gold Purity: Karats (K) Percentage (%)

Current Market Price of Pure Gold: USD per Gram USD per Troy Ounce

Estimated Gold Value:

Understanding Gold Value

The value of gold is determined by several key factors: its weight, its purity, and the current market price of pure gold. This calculator helps you combine these factors to get an estimated value for your gold items.

Gold Weight Units Explained

Grams (g): The most common metric unit for weighing gold globally.
Troy Ounces (ozt): The standard unit for precious metals trading on international markets. One troy ounce is approximately 31.1035 grams.
Avoirdupois Ounces (oz): A common unit for general goods, but less frequently used for precious metals. One avoirdupois ounce is approximately 28.3495 grams. It's crucial not to confuse this with a troy ounce, as a troy ounce is heavier.

Gold Purity Explained

Gold purity refers to the proportion of pure gold in an alloy. Gold is often mixed with other metals (like copper, silver, or zinc) to increase its hardness or change its color.

Karats (K): This system measures purity on a scale of 24. 24 Karat gold is considered 99.9% pure. For example, 18 Karat gold means 18 parts out of 24 are pure gold (18/24 = 75% pure).
Percentage (%): This is a straightforward measure, indicating the percentage of pure gold by weight. For instance, 99.9% pure gold is often referred to as "three nines fine."

Current Market Price of Pure Gold

The market price of pure gold fluctuates constantly based on global economic conditions, supply and demand, geopolitical events, and currency strength. Prices are typically quoted per troy ounce or per gram in major currencies like the US Dollar.

How to Use the Calculator

Enter Gold Weight: Input the weight of your gold and select the appropriate unit (grams, troy ounces, or avoirdupois ounces).
Enter Gold Purity: Input the purity of your gold and select whether it's in Karats or Percentage.
Enter Market Price: Input the current market price of pure gold and specify if it's per gram or per troy ounce. You can usually find this information from financial news sources or reputable gold dealers.
Click "Calculate Gold Price": The calculator will then provide an estimated value of your gold.

Disclaimer: This calculator provides an estimate based on the inputs you provide. Actual buying and selling prices may vary due to dealer premiums, assay costs, market volatility, and other factors.

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var goldWeightUnit = document.getElementById("goldWeightUnit").value; var goldPurity = parseFloat(document.getElementById("goldPurity").value); var goldPurityUnit = document.getElementById("goldPurityUnit").value; var marketPrice = parseFloat(document.getElementById("marketPrice").value); var marketPriceUnit = document.getElementById("marketPriceUnit").value; var resultDiv = document.getElementById("goldPriceResult"); // Input validation if (isNaN(goldWeight) || goldWeight <= 0 || isNaN(goldPurity) || goldPurity <= 0 || isNaN(marketPrice) || marketPrice 24 || goldPurity 100 || goldPurity < 0.01)) { resultDiv.innerHTML = "Percentage purity must be between 0.01 and 100."; resultDiv.style.color = "#dc3545"; return; } var weightInGrams; // Convert gold weight to grams if (goldWeightUnit === "grams") { weightInGrams = goldWeight; } else if (goldWeightUnit === "troy_ounces") { weightInGrams = goldWeight * 31.1034768; // 1 troy ounce = 31.1034768 grams } else if (goldWeightUnit === "ounces") { weightInGrams = goldWeight * 28.3495; // 1 avoirdupois ounce = 28.3495 grams } else { resultDiv.innerHTML = "Invalid gold weight unit selected."; resultDiv.style.color = "#dc3545"; return; } var purityDecimal; // Convert purity to a decimal (e.g., 0.75 for 18K or 75%) if (goldPurityUnit === "karats") { purityDecimal = goldPurity / 24; } else if (goldPurityUnit === "percentage") { purityDecimal = goldPurity / 100; } else { resultDiv.innerHTML = "Invalid gold purity unit selected."; resultDiv.style.color = "#dc3545"; return; } var pricePerGram; // Convert market price to USD per gram if (marketPriceUnit === "per_gram") { pricePerGram = marketPrice; } else if (marketPriceUnit === "per_troy_ounce") { pricePerGram = marketPrice / 31.1034768; // Convert per troy ounce to per gram } else { resultDiv.innerHTML = "Invalid market price unit selected."; resultDiv.style.color = "#dc3545"; return; } // Calculate pure gold equivalent weight in grams var pureGoldWeightGrams = weightInGrams * purityDecimal; // Calculate total value var totalValue = pureGoldWeightGrams * pricePerGram; resultDiv.innerHTML = "$" + totalValue.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 }); resultDiv.style.color = "#007bff"; // Reset color on successful calculation }