How to Use Gold Calculator
Follow these steps to calculate the value of your gold jewelry.
Step 1: Weigh Your Gold
Use a digital jewelry scale (grams preferred). Ensure the scale is zeroed. Weigh without boxes or bags. Remove chains from pendants for separate weighing if needed.
Step 2: Identify Purity (Karat)
Look for stamps: 10K, 14K, 18K, 22K, 24K, or 417, 585, 750. See our Gold Karat Guide for a full chart. If unsure, 14K is a common default for US jewelry.
Step 3: Use the Calculator
Enter weight, select unit (grams, ounces, etc.), and purity. The calculator shows market value instantly.
Gold Value Calculator
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Gold Calculation Formula
Market Value = Weight (grams) × Price per Gram (for your purity)
Example: 10 grams of 14K gold at $38/gram = $380 market value. Buyers typically pay 70-90% of this.