How many ounces are in a gallon?

Answer:
1 gallon [US, liquid] = 128 ounce [US, liquid]
1 Imperial gallon = 160 Imperial fluid ounces
== 1 US gallon = 128 US fluid ounces. ==
128 oz = 1 gallon
Contributor: Jjangkevin
First answer by Ranger22. Last edit by Jjangkevin. Contributor trust: 4 [recommend contributor recommended]. Question popularity: 110 [recommend question].