Convert Fluid Ounces (US) to Gallons (US) (fl oz to gal)
Instantly convert fluid ounces (us) to gallons (us) with this free online converter. Type a value below and the result updates in real time. All calculations run in your browser, nothing is sent to a server.
Fluid Ounces (US) to Gallons (US) Formula
gal = fl oz x 0.0078124959
Multiply the fluid ounces (us) value by 0.0078124959 to get gallons (us).
Common Fluid Ounces (US) to Gallons (US) Conversions
| Fluid Ounces (US) (fl oz) | Gallons (US) (gal) |
|---|---|
| 1 fl oz | 7.8125e-3 gal |
| 5 fl oz | 0.039062 gal |
| 10 fl oz | 0.078125 gal |
| 25 fl oz | 0.195312 gal |
| 50 fl oz | 0.390625 gal |
| 100 fl oz | 0.78125 gal |
| 500 fl oz | 3.906248 gal |
| 1,000 fl oz | 7.812496 gal |
| 5,000 fl oz | 39.062479 gal |
| 10,000 fl oz | 78.124959 gal |
How to Convert Fluid Ounces (US) to Gallons (US)
- Enter the fluid ounces (us) value in the input field above.
- The gallons (us) result appears instantly as you type.
- Click the copy button to copy the result to your clipboard.
- To convert in the other direction, click the Swap button or visit the Gallons (US) to Fluid Ounces (US) converter.
Frequently Asked Questions
How many gallons (us) are in one fluid ounces (us)?
One fluid ounces (us) equals 7.8125e-3 gal. Use the converter above for any value.
What is the formula to convert fl oz to gal?
The formula is: gal = fl oz x 0.0078124959. Multiply the fluid ounces (us) value by 0.0078124959 to get gallons (us).
How do I convert gallons (us) back to fluid ounces (us)?
Use our reverse converter: Gallons (US) to Fluid Ounces (US). You can also click the "Swap" button above the converter.
Is this converter accurate?
Yes. This converter uses the standard conversion factor and handles up to 8 decimal places of precision. All calculations run instantly in your browser with no rounding shortcuts.
Do I need to sign up to use this converter?
No. This converter is completely free with no signup, no account, and no usage limits. Your data never leaves your browser.
About This Tool
- Tool
- FreeToolPark Fluid Ounces (US) to Gallons (US) Converter
- Type
- Free online tool, no signup required
- Domain Expertise
- Unit conversion, measurement systems, data format conversion
- Privacy
- 100% client-side, no data stored
- Description
- Free fluid ounces (us) to gallons (us) converter. Instantly convert fl oz to gal with a reference table of common values. No signup, runs in your browser.
Cite This Tool
FreeToolPark. "Fluid Ounces (US) to Gallons (US) Converter." FreeToolPark, 2026, www.freetoolpark.com/tools/convert/floz-to-gal. Accessed April 14, 2026.