100 US fluid ounces to US gallons
100 fl oz = 0.78125 gal. Change the amount below, or read the formula and the reference table further down.
100 US fluid ounces equals
US gallons
1 fl oz = 0.0078125 gal
The formula
US fluid ounces and US gallons both measure volume from the same zero, so a single multiplier does the job.
gal = fl oz × 0.0078125
Going the other way? Convert US gallons to US fluid ounces.
US fluid ounces to US gallons table
Values either side of 100 fl oz.
| US fluid ounces (fl oz) | US gallons (gal) |
|---|---|
| 0 | 0 |
| 10 | 0.078125 |
| 20 | 0.15625 |
| 30 | 0.234375 |
| 40 | 0.3125 |
| 50 | 0.390625 |
| 60 | 0.46875 |
| 70 | 0.546875 |
| 80 | 0.625 |
| 90 | 0.703125 |
| 100 | 0.78125 |
| 110 | 0.859375 |
| 120 | 0.9375 |
| 130 | 1.0156 |
| 140 | 1.0938 |
| 150 | 1.1719 |
| 160 | 1.25 |
| 170 | 1.3281 |
| 180 | 1.4063 |
| 190 | 1.4844 |
| 200 | 1.5625 |
Questions people ask
- How many US gallons are in a US fluid ounce?
- One US fluid ounce equals 0.0078125 US gallons.
- How do I convert US fluid ounces to US gallons by hand?
- Multiply the number of US fluid ounces by 0.0078125. For a rough check, 0.008 is close enough for most everyday use.
- What is 100 US fluid ounces in US gallons?
- 100 US fluid ounces is 0.78125 US gallons.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.