This site will calculate your weight, purity, and the value of what its worth at market price. The only thing you have to provide is adding the price per troy oz. before they tally up the value.
http://www.archenterprises.com/silver-gold-calculator.html
Here is a site that shows real time prices.
http://www.monex.com/?gclid=CNLgqJi00acCFaRa7Aody2jGDA
http://www.archenterprises.com/silver-gold-calculator.html
Here is a site that shows real time prices.
http://www.monex.com/?gclid=CNLgqJi00acCFaRa7Aody2jGDA