Convert ounces to gallons
1 fl oz = 0.0078125 gal
1 gal = 128 fl oz
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How to convert ounces to gallons
Divide the value in ounces by 128 to get gallons. As a formula: gal = fl oz ÷ 128
Good to know
Divide US fluid ounces by 128 for US gallons. 64 fl oz is half a gallon.
ounces to gallons conversion table
| ounces (fl oz) | gallons (gal) |
|---|---|
| 1 fl oz | 0.0078125 gal |
| 2 fl oz | 0.015625 gal |
| 3 fl oz | 0.0234375 gal |
| 4 fl oz | 0.03125 gal |
| 5 fl oz | 0.0390625 gal |
| 6 fl oz | 0.046875 gal |
| 8 fl oz | 0.0625 gal |
| 10 fl oz | 0.078125 gal |
| 12 fl oz | 0.09375 gal |
| 15 fl oz | 0.117188 gal |
| 16 fl oz | 0.125 gal |
| 20 fl oz | 0.15625 gal |
| 25 fl oz | 0.195313 gal |
| 30 fl oz | 0.234375 gal |
| 32 fl oz | 0.25 gal |
| 50 fl oz | 0.390625 gal |
| 64 fl oz | 0.5 gal |
| 75 fl oz | 0.585938 gal |
| 100 fl oz | 0.78125 gal |
| 128 fl oz | 1 gal |
| 250 fl oz | 1.95313 gal |
| 500 fl oz | 3.90625 gal |
| 1,000 fl oz | 7.8125 gal |
Related conversions
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- ml to ounces
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- liters to gallons
- ml to liters
- quarts to gallons
- quarts to ounces
- cubic feet to gallons
Need other units? The full Volume Converter converts between every unit it supports, and the Unit Converters page lists the rest.
ounces to gallons — questions
How many gallons are in 1 fl oz?
1 fl oz = 0.0078125 gal. Divide the value in ounces by 128 to get gallons.
How do I convert ounces to gallons?
Divide the value in ounces by 128. For example, 16 fl oz ÷ 128 = 0.125 gal.
What is 16 fl oz in gallons?
16 fl oz = 0.125 gal.
What is 32 fl oz in gallons?
32 fl oz = 0.25 gal.
What is 64 fl oz in gallons?
64 fl oz = 0.5 gal.
What is 128 fl oz in gallons?
128 fl oz = 1 gal.