A gallon holds 128 fluid ounces in the United States. Understanding this conversion is essential in the kitchen, at the gas station, and beyond. Our guide simplifies converting ounces to gallons. It also explores their uses in daily life without the complexity. Key Takeaways for Many Ounces in a Gallon A US gallon equals 128 … Continue reading How Many Ounces in a Gallon [Conversion Solved]