US gallons to US fluid ounces Converter

Convert US gallons to US fluid ounces instantly, with the formula and a gal to fl oz conversion table. 🔒 Runs in your browser

Convert to all units

US gallon to US fluid ounce formula

fl oz = gal × 128 · 1 US gallon = 128 US fluid ounces

gal to fl oz conversion table

US gallons (gal)US fluid ounces (fl oz)
1 gal128 fl oz
2 gal256 fl oz
3 gal384 fl oz
5 gal640 fl oz
10 gal1280 fl oz
20 gal2560 fl oz
25 gal3200 fl oz
50 gal6400 fl oz
100 gal12800 fl oz
250 gal32000 fl oz
500 gal64000 fl oz
1000 gal128000 fl oz

How to use the US Gallons to US Fluid Ounces converter

  1. Enter the value you want to convert.
  2. Pick the units to convert from and to (or click ⇄ to swap).
  3. Read the result instantly, with the formula and a full table below.

About this tool

Convert US gallons to US fluid ounces instantly, with the formula and a gal to fl oz conversion table. It is part of the free Converters collection on Online Tools Harbor. Everything happens locally in your browser, so it is fast and private.

Frequently asked questions

How do I convert US gallons to US fluid ounces?

Use the formula fl oz = gal × 128. For example, 3 gal = 384 fl oz.

How many US fluid ounces are in 1 US gallon?

1 US gallon = 128 US fluid ounces. To convert, multiply the value in US gallons by 128.

Is the US Gallons to US Fluid Ounces free?

Yes. The US Gallons to US Fluid Ounces is completely free to use, with no sign-up and no limits on normal use.

Is my data safe?

Yes. This tool runs entirely in your web browser using JavaScript. Your text is never uploaded to our servers.

Does it work on mobile?

Yes, it works in any modern browser on phones, tablets and computers. No app to install.

More volume conversions

Liters to US Gallons · US Gallons to Liters · Milliliters to US Fluid Ounces · US Fluid Ounces to Milliliters · US Cups to Milliliters · Tablespoons to Milliliters · Milliliters to Liters · Liters to Milliliters · Teaspoons to Milliliters · Milliliters to Teaspoons · Milliliters to US Cups · Liters to US Cups · Imperial Gallons to Liters · Cubic Meters to Liters · Liters to US Fluid Ounces

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