Silver currently sells for about $17/oz
The value changes daily as the market price for silver fluctuates. As of 20 October 2012, silver is worth $32.06/oz, making a 5 oz. bar worth $160.30.
I think you mean 1000 gram ingots, not grains. That would be 100,000 grams of silver, or 3,215.07 troy ounces (oz t) in silver mass. Silver, gold and precious metals are always weighed in Troy ounces, which are different from the ordinary ounce.
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1Kg is about 35oz. Silver is $18.50/oz. So 1000g of silver is worth about $650.
31.1 troy
31 grams = 0.996 troy oz.
Silver half dollars have about 0.362 Troy oz. of silver in them, so 3 of them would be 1.086 Troy oz.
There are approximately 31.1035 grams in a Troy ounce.
1 troy ounce of silver is 480 grains.
31.1 grams.
1kg = 32.15t oz
1 kilogram = about 32.15 troy ounces (32.1507466 troy oz)
Let me provide several conversion factors to you: a troy ounce = 480 grains = 1/12 pound. By the way, a grain = 64.9 mg.
1 ounce = 0.91146 troy oz
".999 silver" does not signify the weight. It signifies the purity. .999 is the same as 99.9%. But silver bullion comes in half-troy oz rounds, 1 troy oz rounds or bars, 5, 10, 12, 20, 50, 100, and 1000 troy oz bars. 12 troy oz=1 troy lb. 1 troy oz=31.1034768 g, as opposed to the oz, which weighs 28.3495231 g.
14 silver dimes equal just a little more than 1 troy oz. Each coin has .07234 oz of pure silver.