Off-the-cuff calculations based on abundance in the Earth’s crust, density, production data, supply/demand metrics, and recovery information. This number would represent total silver available in coins, bars, rounds, silverware, and jewelry. These calculations are a guesstimate at best, and should not influence your investment decisions. Other websites have concluded that there are 25b troy ounces in existence, which I believe to be completely inaccurate. (http://demonocracy.info/infographics/…)