You haven't put any units in against the '1' in your question, so do you mean 1 mm, or 1 inch or what? Anyway, rainfall is measured, maybe in inches, over the area on which it falls. So if you had a very local shower of 1 inch but it only covered 1 acre, the weight of rain would not be nearly so much as 1 inch on 20 acres.
one inch of rain equals 3 cups of water (24 ounces) based on the area of a standard rain gauge.
there are 24 ounces in 1 pound and 8 ounces.
1
You have already stated 1.25 ounces -that is 1-1/4 ounces.
there is 8 ounces in 1 cup
Just one.
16 ounces.
1 gallon = 128 fluid ounces 1/50 of a gallon = 2.56 fluid ounces
1 pound is equivalent to 16 ounces.
1 pound = 16 ounces
Approximately 1 and 1/2 ounces
1 quart = 32 fluid ounces