The value of gold fluctuates based on global economic conditions, market demand, and geopolitical events.
This Current Gold Price Calculator provides a quick and efficient way to estimate the value of your gold based
on its weight, purity, and the current market price of pure gold. It's an essential tool for anyone looking
to buy, sell, or simply understand the worth of their gold assets.
How it Works: The Math Behind the Calculation
The calculator uses a straightforward formula to determine the value of your gold:
Estimated Gold Value = (Adjusted Weight) * (Purity Factor) * (Price per Gram of Pure Gold)
Let's break down each component:
Weight Conversion: The first step is to convert your input weight into a standard unit, usually grams. The calculator handles common units like kilograms, troy ounces, tolas, and bahts, converting them to grams using established conversion factors.
1 Kilogram = 1000 Grams
1 Troy Ounce (oz t) ≈ 31.1035 Grams
1 Tola ≈ 11.664 Grams
1 Baht ≈ 15.244 Grams
Purity Factor: Gold purity is measured in karats, with 24K being pure gold (99.9%). The calculator uses a purity factor derived from the selected karat to represent the proportion of pure gold in your item.
24K: 0.999
22K: 0.9167
18K: 0.750
14K: 0.5833
10K: 0.4167
The formula adjusts your input weight by multiplying it with this purity factor to get the Adjusted Weight (the actual amount of pure gold in your item).
Price per Gram of Pure Gold: This is the live or specified market price for one gram of 24-karat (pure) gold. This is the input you provide, representing the current market rate.
By multiplying these values, the calculator provides an estimated current market value for your specific gold item.
Use Cases: Who Needs This Calculator?
Jewelry Buyers & Sellers: Estimate the value of gold jewelry before purchasing or selling.
Investors: Track the value of physical gold holdings.
Pawnbrokers: Quickly assess the value of gold items presented as collateral.
Goldsmiths & Jewelers: Calculate material costs for custom pieces or inventory valuation.
Individuals: Understand the worth of inherited gold or personal gold possessions.
Remember that this calculator provides an estimate based on current market prices and the purity you specify. Actual selling prices may vary due to factors like making charges, dealer markups, and melt value assessments.
function calculateGoldPrice() {
var goldWeight = parseFloat(document.getElementById("goldWeight").value);
var weightUnit = document.getElementById("weightUnit").value;
var goldPurity = document.getElementById("goldPurity").value;
var currentPricePerGram = parseFloat(document.getElementById("currentPricePerGram").value);
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = "–"; // Clear previous result
// Input validation
if (isNaN(goldWeight) || goldWeight <= 0) {
resultDiv.innerHTML = "Please enter a valid gold weight.";
return;
}
if (isNaN(currentPricePerGram) || currentPricePerGram <= 0) {
resultDiv.innerHTML = "Please enter a valid current market price per gram.";
return;
}
var weightInGrams = 0;
// Convert weight to grams
switch (weightUnit) {
case "gram":
weightInGrams = goldWeight;
break;
case "kilogram":
weightInGrams = goldWeight * 1000;
break;
case "ounce": // Assuming Troy Ounce
weightInGrams = goldWeight * 31.1035;
break;
case "tola":
weightInGrams = goldWeight * 11.664;
break;
case "baht":
weightInGrams = goldWeight * 15.244;
break;
default:
resultDiv.innerHTML = "Invalid weight unit selected.";
return;
}
var purityFactor = 0;
switch (goldPurity) {
case "24k":
purityFactor = 0.999;
break;
case "22k":
purityFactor = 0.9167;
break;
case "18k":
purityFactor = 0.750;
break;
case "14k":
purityFactor = 0.5833;
break;
case "10k":
purityFactor = 0.4167;
break;
default:
resultDiv.innerHTML = "Invalid gold purity selected.";
return;
}
var pureGoldWeight = weightInGrams * purityFactor;
var estimatedValue = pureGoldWeight * currentPricePerGram;
// Format the result nicely
var formattedValue = estimatedValue.toLocaleString(undefined, {
minimumFractionDigits: 2,
maximumFractionDigits: 2
});
resultDiv.innerHTML = `$${formattedValue} (Estimated Value)`;
}