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Convert gallons (US) to fluid ounces (US)

Free online converter from gallons (US) to fluid ounces (US). Type a value to get an instant result, check the formula and use the quick reference table below.

⇄
1 gal = 128 fl oz
Formula: fl oz = gal × 128

Conversion table

gallons (US) (gal)fluid ounces (US) (fl oz)
1128
2256
5640
101280
202560
506400
10012800
25032000
50064000
1000128000

Popular values

2 gal → fl oz5 gal → fl oz10 gal → fl oz15 gal → fl oz20 gal → fl oz25 gal → fl oz30 gal → fl oz40 gal → fl oz50 gal → fl oz75 gal → fl oz100 gal → fl oz150 gal → fl oz200 gal → fl oz250 gal → fl oz500 gal → fl oz1000 gal → fl oz

Frequently asked questions

How many fl oz are in 1 gal?

1 gal = 128 fl oz.

How do I convert gallons (US) to fluid ounces (US)?

Multiply the value in gallons (US) by 128 to get fluid ounces (US).

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