Fluid Ounce to Gallon (US) Converter

Convert fluid ounces to gallon (us)s (fl oz to gal) instantly with this free online volume converter. Enter any value in the Fluid Ounce field and get the equivalent in Gallon (US) immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.

The conversion factor is exact: 1 fl oz = 0.007812495872 gal. To convert fluid ounces to gallon (us)s, multiply your Fluid Ounce value by 0.007812495872. For example, 10 fl oz = 0.07812495872 gal. You can also reverse the calculation: 1 gal = 128.0000676 fl oz.

Quick conversion table

Fluid Ounce (fl oz) Gallon (US) (gal)
1 fl oz 0.007812495872 gal
5 fl oz 0.03906247936 gal
10 fl oz 0.07812495872 gal
25 fl oz 0.1953123968 gal
50 fl oz 0.3906247936 gal
100 fl oz 0.7812495872 gal

Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the volume category.

Result —
Formula —

Formula

Fluid Ounce to Gallon (US) conversion:
1 fl oz = 0.007812495872 gal
gallon (us)s = fluid ounces × 0.007812495872
1 gal = 128.0000676 fl oz
fluid ounces = gallon (us)s × 128.0000676

Example

Example: Convert 10 fl oz to gal: 10 fl oz × 0.007812495872 = 0.07812495872 gal So, 10 fl oz is about 0.07812495872 gal. To convert back, multiply by 128.0000676: 0.07812495872 gal × 128.0000676 = 10 fl oz.

How to Use

  1. Enter the value you want to convert in the Fluid Ounce field
  2. The result in Gallon (US) appears instantly below
  3. Use the dropdown menus to change units if needed
  4. Click 'Swap Units' to reverse the conversion direction
  5. Copy the result or adjust the input for a new conversion

Frequently Asked Questions

How do I convert fluid ounces to gallon (us)s?

Enter the value in Fluid Ounce (fl oz) in the 'From' field. The equivalent in Gallon (US) (gal) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.

What is the formula to convert fl oz to gal?

1 fl oz = 0.007812495872 gal, so gallon (us)s = fluid ounces × 0.007812495872. To convert back, 1 gal = 128.0000676 fl oz. The full formula and a worked example are shown on this page.

How many gallon (us)s are in one Fluid Ounce?

1 fl oz = 0.007812495872 gal.

Is this Fluid Ounce to Gallon (US) converter free?

Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.

Can I convert gallon (us)s back to fluid ounces?

Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other volume unit for either field.

How accurate is the fl oz to gal conversion?

The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.