Calculate the exact value of 18-karat gold ornaments
Calculation Breakdown
18K Rate (per gram):0
Net Gold Value:0
Making Charges:0
GST Amount:0
Total Price:0
How to Calculate 18K Gold Rate Automatically
18K gold consists of 75% pure gold mixed with 25% other metals like copper or silver to provide durability. Calculating the rate of 18K gold manually involves finding the 24K price, adjusting for purity, and then adding jewelry-specific costs.
Add Making Charges: If making charges are 10%, 45,000 × 0.10 = 4,500.
Add GST: 3% GST on (45,000 + 4,500) = 1,485.
Final Price: 45,000 + 4,500 + 1,485 = 50,985.
Why choose 18K Gold?
18K gold is the preferred choice for diamond and gemstone jewelry. Since pure gold (24K) is too soft to hold stones securely, the 25% alloy in 18K provides the necessary strength while maintaining a high gold value and a rich yellow luster.
function calculateGoldPrice() {
var price24k = parseFloat(document.getElementById("price24k").value);
var weight = parseFloat(document.getElementById("goldWeight").value);
var makingPercent = parseFloat(document.getElementById("makingCharges").value);
var gstPercent = parseFloat(document.getElementById("gstTax").value);
if (isNaN(price24k) || isNaN(weight) || price24k <= 0 || weight <= 0) {
alert("Please enter valid positive numbers for Gold Price and Weight.");
return;
}
// Calculation logic
// 1. Get 18k rate per gram (18/24 = 0.75 purity factor)
var pricePerGram24k = price24k / 10;
var rate18kPerGram = pricePerGram24k * 0.75;
// 2. Net value of the gold
var netGoldValue = rate18kPerGram * weight;
// 3. Making charges
var totalMaking = netGoldValue * (makingPercent / 100);
// 4. Subtotal before tax
var subTotal = netGoldValue + totalMaking;
// 5. GST calculation
var totalGst = subTotal * (gstPercent / 100);
// 6. Final Total
var finalPrice = subTotal + totalGst;
// Display results
document.getElementById("ratePerGram").innerText = rate18kPerGram.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("netValue").innerText = netGoldValue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("makingValue").innerText = totalMaking.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("gstValue").innerText = totalGst.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("totalPriceDisplay").innerText = finalPrice.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("resultArea").style.display = "block";
}