Convert from gallons to ounces (gal to oz) using this handy conversion tool and charts

The conversion factor for gallon to ounces is 128, which means that one gallon is equal to 128 ounces. To convert gallon to oz, we can use the following formula:

Find the answer to how many oz in a gal with our guide for US, Imperial (UK), and Metric conversions, plus charts, FAQs, and more!

Oct 28, 2025 · Wondering how many ounces are in a gallon? 🧮 Discover the exact US and UK gallon conversions, including fluid ounces, dry ounces, and pint equivalents. This complete guide with …

Aug 14, 2025 · Quick Tip: Most Americans only need to remember 128 ounces per gallon. I've found this number comes in handy more often than you'd think - from mixing cleaning solutions to planning …

A U.S. gallon is a unit of volume equal to 128 U.S. fluid ounces, or about 3.785 liters. It should not be confused with the imperial gallon used in the United Kingdom.

Jun 27, 2024 · A US gallon equals 128 fluid ounces, while a UK (Imperial) gallon equals 160 fluid ounces. Use the chart below to quickly determine how many ounces are in any number of gallons.

Oct 14, 2025 · So, the next time someone asks, “How many ounces are in a gallon?”, you’ll have the confident, exact answer ready: There are 128 fluid ounces in one U.S. gallon and 160 fluid ounces in …

Jul 7, 2025 · How Many Ounces Are in a Gallon is a common question for anyone working with liquid measurements, whether in the kitchen, laboratory, or industry. In the US customary system, one …

How Many Fluid Ounces Are in a Gallon? There are 128 fluid ounces in a gallon, which is why we use this value in the formula above. 1 gal = 128 fl oz Gallons and fluid ounces are both units used to …