um...128
0.42 gallon equals 53.76 fluid ounces.
1 US gallon = 128 fluid ounces
1 US gallon equals 128 US fluid ounces
128 fluid ounces per US gallon.
128 fluid ounces
1 US gallon is 128 ounces
128 oz
128 ounces in a gallon
1/2 US gallon is 64 ounces
128 liquid ounces in a gallon of water.
There are 64 ounces in one half gallon. Since one gallon equals 128 ounces, dividing that by two gives you 64 ounces for half a gallon.
One US gallon.