Convert fluid ounces to gallons
gallons = fluid ounces × 0.007813
One fluid ounce is 0.007813 gallons, so multiply by 0.007813 to convert. That factor is exact by definition. This is the US fluid ounce of 29.5735 mL. An imperial (UK) fluid ounce is 28.4131 mL — smaller, because there are 20 to an imperial pint rather than 16. These are US customary measures. An imperial (UK) gallon is 4.54609 L against the US gallon's 3.785411784 L, and the imperial pint, quart and fluid ounce differ too, so UK figures will not match.
Convert any value
- Milliliters
- 29.57353 mL
- Cubic meters
- 0.00003 m³
- Teaspoons (US)
- 6 tsp
- Tablespoons (US)
- 2 tbsp
- Fluid ounces (US)
- 1 fl oz
- Cups (US)
- 0.125 cup
- Pints (US)
- 0.0625 pt
- Quarts (US)
- 0.03125 qt
- Gallons (US)
- 0.007813 gal
- Cubic inches
- 1.804688 in³
- Cubic feet
- 0.001044 ft³
- Cubic yards
- 0.000039 yd³
Assumptions
- US customary units (customary cup of 236.59 mL, US gallon of 3.785 L).
- Imperial units are shown in the table only.
| Measure | Equals |
|---|---|
| 1 teaspoon | 4.93 mL (metric tsp: 5 mL) |
| 1 tablespoon | 3 tsp = 14.79 mL = ½ fl oz |
| 1 fluid ounce | 2 tbsp = 29.57 mL |
| 1 cup | 8 fl oz = 16 tbsp = 236.59 mL (legal 'nutrition' cup: 240 mL) |
| 1 pint | 2 cups = 16 fl oz = 473.18 mL |
| 1 quart | 2 pints = 4 cups = 946.35 mL |
| 1 gallon | 4 quarts = 16 cups = 128 fl oz = 3.785 L |
| 1 liter | 4.227 cups = 33.81 fl oz = 1.0567 qt |
| Unit | US (mL) | Imperial (mL) |
|---|---|---|
| Fluid ounce | 29.57 | 28.41 |
| Cup | 236.59 | 284.13 |
| Pint | 473.18 | 568.26 |
| Quart | 946.35 | 1,136.52 |
| Gallon | 3,785.41 | 4,546.09 |
An imperial pint is 20 imperial fl oz; a US pint is 16 US fl oz. This converter uses US units.
fluid ounces to gallons table
| fluid ounces | gallons |
|---|---|
| 1 fluid ounce | 0.007813 gallons |
| 2 fluid ounces | 0.015625 gallons |
| 3 fluid ounces | 0.023438 gallons |
| 4 fluid ounces | 0.03125 gallons |
| 5 fluid ounces | 0.039063 gallons |
| 10 fluid ounces | 0.078125 gallons |
| 15 fluid ounces | 0.117188 gallons |
| 20 fluid ounces | 0.15625 gallons |
| 25 fluid ounces | 0.195313 gallons |
| 50 fluid ounces | 0.390625 gallons |
| 75 fluid ounces | 0.585938 gallons |
| 100 fluid ounces | 0.78125 gallons |
| 500 fluid ounces | 3.9063 gallons |
| 1,000 fluid ounces | 7.8125 gallons |
Other conversions
Put this converter on your own site
A working fluid ounces-to-gallons converter, free for any site, with no ads and no sign-up. It resizes to fit wherever you paste it.
Paste this anywhere. It works on any site, carries no ads, never expires, and always shows the current version.
Fluid Ounces to Gallons by CalculateItNow
The page's own title. The clearest description of what the link leads to.
The credit line sits outside the widget on purpose, so it is a real link on your page rather than one buried in a frame. Please keep it — it is what pays for CalculateItNow staying free and ad-free. The script only resizes the widget to fit its contents; drop it and the widget still works.
1 fluid ounce = 0.007813 gallons. Source: https://www.calculateitnow.dev/fl-oz-to-gallons