1 troy ounce is 31,100 mg
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.
1 troy ounce of silver is 480 grains.
1 troy oz of silver is 31.1 (31.1034768) grams.
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
The weight of 999 silver depends on the specific product, with common examples being a 1 oz silver coin weighing 31.1 grams or a 10 oz silver bar weighing 311.03 grams. The purity level is always 99.9% silver.
14 silver dimes equal just a little more than 1 troy oz. Each coin has .07234 oz of pure silver.