Troy Ounce vs Ounce Gold Price
Aug 16, 2018· A troy ounce is 1/12 of a troy pound (a troy pound is actually lighter than an avoirdupois pound). The troy ounce (480 grains) is heavier than the avoirdupois ounce ( grains). A grain is milligrams (mg); therefore one troy ounce is grams (g). This measures out to be about 10 percent more than the avoirdupois ounce ...