Skip to content
Engyna

Convert US fluid ounces to US gallons

Convert US fluid ounces (fl oz) to US gallons (gal). 1 fl oz = 0.0078125 gal, and 1 gal = 128 fl oz.

1 fl oz = 0.0078125 gal

Fluid Ounces to Gallons formula

gal = fl oz ÷ 128

Divide the number of US fluid ounces by 128.

Example: To convert 1 fl oz to US gallons: 1 ÷ 128 = 0.0078125 gal.

Quick answers

What is 1 fl oz in US gallons?
1 fl oz = 0.0078125 gal
What is 8 fl oz in US gallons?
8 fl oz = 0.0625 gal
What is 12 fl oz in US gallons?
12 fl oz = 0.09375 gal
What is 16 fl oz in US gallons?
16 fl oz = 0.125 gal
What is 32 fl oz in US gallons?
32 fl oz = 0.25 gal

Fluid Ounces to Gallons conversion table

Gallons to Fluid Ounces table
US fluid ounces (fl oz)US gallons (gal)
1 fl oz0.0078125 gal
2 fl oz0.015625 gal
4 fl oz0.03125 gal
6 fl oz0.046875 gal
8 fl oz0.0625 gal
10 fl oz0.078125 gal
12 fl oz0.09375 gal
16 fl oz0.125 gal
17 fl oz0.132813 gal
20 fl oz0.15625 gal
24 fl oz0.1875 gal
32 fl oz0.25 gal
33.8 fl oz0.264063 gal
40 fl oz0.3125 gal
64 fl oz0.5 gal
128 fl oz1 gal

Frequently asked questions

How many US fluid ounces are in a US gallon?

There are 128 US fluid ounces in a US gallon (1 gal = 128 fl oz), so 1 fl oz = 0.0078125 gal.

How do I convert US fluid ounces to US gallons?

Divide the number of US fluid ounces by 128. To convert 1 fl oz to US gallons: 1 ÷ 128 = 0.0078125 gal.

Is the Fluid Ounces to Gallons conversion exact?

Yes. Both units are defined exactly, so 1 US fluid ounce is exactly 0.0078125 US gallons. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1 fl oz in US gallons?

1 fl oz = 0.0078125 gal.

How do I convert US gallons back to US fluid ounces?

Use the reverse relationship: 1 gal = 128 fl oz. The Gallons to Fluid Ounces page has a converter and a full table.

More volume conversions

All unit conversions