Interactive Tool
Cost Basis Tracker
Add your purchases, track your average cost basis, and see unrealized gains or losses at current spot prices.
Your Purchases
Portfolio Summary
Gold
Oz
1.00
Avg Cost
$2,100.00
Value
$4,610.85
Gain/Loss
+$2,510.85 (119.6%)
Total
Total Cost
$2,100.00
Total Value
$4,610.85
Net
+$2,510.85
How to Use
Add each purchase with the metal type, ounces, cost per ounce, and date. The tracker calculates your average cost basis and compares it to live spot prices.
Data is stored locally in your browser — it is not sent to any server.