4 crackers
There are 0.006857143 ounces in 3 grains.
90 grains is approximately 0.185 ounces
2,100 grains is 4.375 troy ounces.
555.0 grains equates to 1.156 troy ounces.
Seven ounces = 3,062.5 grains.
That is approximately 4.409 ounces
According to Google Calculator, 1.25 ounces of weight is equivalent to 546.875 grains.
20 graham crackers = 10 ounces so 1 graham cracker = 0.5 ounces.
2.0833 troy ounces next time just google "sterling silver 1000 grains"
Conversion: grains x 0.002286 = ounces
500 g = 17.64 oz
The answer is 2.285714 oz.