12.8
12.8 glasses.
One USG of water is 16 cups
7
128 ounces in a gallon 128/6.25 = 201/2 glasses approximately
8 16oz glasses
there are 8, 8 ounce glasses in one gallon
16 glasses 1 gallon makes 128 ounces and 1 ounce is 0.0078 gallon in U.S measure. There are 8 ounces in a cup, 2 cups in a pint, 2 pints in a quart and 4 quarts in a gallon. That makes 128 ounces in a gallon US. In UK 20 ounces to the pint, 8 pints to the gallon which makes 160 ounces Imperial measure.
9.5 bottles equal one Imperial gallon.
Depends on the size of the glass and (perversely) on the size of the gallon!. For some reason British gallons are larger than American gallons:1 gallon(UK) = 1.2 gallons(US) (approx.)However, let's assume that you are referring to British gallons, in which case1 gallon(UK) = 8 pints(UK) = 4.546 Litres (approx.)so, if you have a 1 pint glass then 8 glasses = 1 gallon(UK),and if you have a 1/2 pint glass then 16 glasses = 1 gallon(UK),and so forth.
134 pints 1 gallon = 8 pints 1 pint = 0.12 gallon
500 ml = 2 glasses
84.53 glasses @ 8 oz