Convert Gallon (US) to Fluid Ounce (US)
Instant volume conversion, with the formula and a full reference table.
1 gal
128 fl oz
1 fl oz = 0.0078125 gal
How to convert Gallon (US) to Fluid Ounce (US)
Multiply the number of gallon (us) by 128.
fl oz = gal × 128
To go the other way, divide instead — or multiply by 0.0078125.
Worked example
To convert 25 gal: 25 × 128 = 3,200 fl oz.
Gallon (US) to Fluid Ounce (US) conversion table
| Gallon (US) (gal) | Fluid Ounce (US) (fl oz) |
|---|---|
| 1 | 128 |
| 2 | 256 |
| 3 | 384 |
| 5 | 640 |
| 10 | 1,280 |
| 20 | 2,560 |
| 25 | 3,200 |
| 50 | 6,400 |
| 100 | 12,800 |
| 250 | 32,000 |
| 500 | 64,000 |
| 1,000 | 128,000 |