The How Much Platinum I Can Buy calculator computes the weight of platinum one can buy based on the amount of money one has, the current price of platinum and a reasonable retailer markup.
INSTRUCTIONS: Choose units and enter the following:
Platinum Bullion (GB): The calculator returns the amount of platinum bullion with no markup, you can get for the money. The weight of platinum is returned in troy ounces, grams and pounds and ounces.
The amount of platinum one can buy is affected by two items, the current SPOT price of platinum, which is constantly changing, and the markup from the retailer. For platinum, a highly competitive markup is low, and on the order of 10% for retailers that deal in large volumes. 12% to 15% is not uncommon nor gouging from local jewelers and pawn shops. Above 20%, and one should consider looking elsewhere.