File & Data Converters

Gallons (US) to Fluid Ounces (US) Converter

Enter a value in gallons (US) to convert it to fluid ounces (US), or switch units to convert the other way.

1 Gallons (US) = 128 Fluid ounces (US)

All Gallons (US) conversions

Milliliters
3,785.411784
Liters
3.785412
Gallons (UK)
0.832674
Quarts (US)
4
Cups (US)
16
Fluid ounces (US)
128
Teaspoons (US)
768
Tablespoons (US)
256

How to use this tool

  1. 1Enter a value in gallons (US).
  2. 2The result in fluid ounces (US) updates instantly.
  3. 3Use the swap button to convert fluid ounces (US) to gallons (US) instead.

Frequently asked questions

How many fluid ounces (US) is 1 gallon (US)?+

1 gallon (US) equals approximately 128 fluid ounces (US).

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