Depends what the substance is. - 15 cups of flour is about 4 pounds. 15 cups of water is about 7.5 pounds. 15 cups of fine table salt could be 9 pounds -
That is approximately 8 pounds
15 pounds of water is 30 cups. Other substances are different .
About 30 cups
About 5-6 cups per pound
60 pounds of water is 120 cups.
You're switching from weight (pounds) to volume (cups). Different things have different weights. A cup of flour (sifted) for example is 120g while a cup of water is 238g, almost twice as much. So it entirely depends on 14 pounds of what. Let's switch it up to 15 pounds for simpler examples. So a 15 lb dumbell at the gym would probably take up three or four cups if you melted it down but 15 pounds of flour (picture three 5lb bags) is obviously a whole lot more than four cups.
There is 31.29527 Pounds in 60 Cups.
4 cups of sugar is approximately 2 pounds.
Three cups of water is 1.5 pounds
48 half cups in 12 pounds
28 pounds of water is 56 cups
24 cups.