Gallons to Fluid Ounces

Convert gallons (us) (gal) to fluid ounces (us) (fl oz) with formulas, examples, and conversion tables.

gal
fl oz
1 gal = 128 fl oz
Full precision:128 fl oz
Step-by-Step Solution

To convert 1 gallons (us) to fluid ounces (us), we multiply by 128 because one gallon (us) equals exactly 128 fluid ounces (us).

1 gallon (us) = 128 fluid ounces (us)

Since each gallon (us) contains 128 fluid ounces (us), we multiply our value by this factor:

1 × 128 = 128 fluid ounces (us)

So 1 gallons (us) = 128 fluid ounces (us).

Quick check: 128 ÷ 128 = 1 gallons (us)

How to Convert Gallons (US) to Fluid Ounces (US)

To convert gallons (us) to fluid ounces (us), multiply the value by 128.

The Formula

Fluid Ounces (US) = Gallons (US) × 128

Key Fact

1 gallon (us) = 128 fluid ounces (us)

Tip: To convert fluid ounces (us) back to gallons (us), divide by 128.

Example Conversions

Example 1: 1 gal = 128 fl oz
1 × 128 = 128
Example 2: 5 gal = 640 fl oz
5 × 128 = 640
Example 3: 10 gal = 1280 fl oz
10 × 128 = 1280

Gallons (US) to Fluid Ounces (US) Table

Gallons (US)Fluid Ounces (US)
1 gal128 fl oz
2 gal256 fl oz
5 gal640 fl oz
10 gal1280 fl oz
20 gal2560 fl oz
25 gal3200 fl oz
50 gal6400 fl oz
100 gal12800.01 fl oz
250 gal32000.02 fl oz
500 gal64000.03 fl oz
1000 gal128000.07 fl oz

1 Gallon (US) in Other Units

Unit1 gal =
Gallons (US) to Kiloliters0.0037854 kL
Gallons to Liters3.7854 L
Gallons to Milliliters3785.41 mL
Gallons (US) to Cubic Centimeters3785.41 cm³
Gallons (US) to Cubic Meters0.0037854
Gallons to Quarts4 qt
Gallons to Pints8 pt
Gallons to Cups16 cup
Gallons to Fluid Ounces128 fl oz
Gallons (US) to Gallons (UK)0.83267 gal (UK)
Gallons (US) to Quarts (UK)3.3307 qt (UK)
Gallons (US) to Pints (UK)6.6614 pt (UK)
Gallons (US) to Fluid Ounces (UK)133.228 fl oz (UK)
Gallons (US) to Tablespoons255.999 tbsp
Gallons (US) to Teaspoons768 tsp
Gallons (US) to Cubic Feet0.13368 ft³
Gallons (US) to Cubic Inches230.999 in³

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