US Gallon to US Fluid Ounce Converter
Enter a value to instantly convert between volume units.
Precision4 dp
1 US Gallon = 128 US Fluid Ounce
Key Formulas
Liter → US Gallon
gal = L × 0.264172US Gallon → Liter
L = gal × 3.78541US Cup → Milliliter
mL = cup × 236.588Milliliter → US Cup
cup = mL × 0.00422675Formula
fl oz = gal × 128Source: NIST SP 811, Table B.8
| US Gallon (gal) | US Fluid Ounce (fl oz) |
|---|---|
| 1 | 128 |
| 5 | 640 |
| 10 | 1,280 |
| 25 | 3,200 |
| 50 | 6,400 |
| 100 | 12,800 |
| 500 | 64,000 |
| 1,000 | 128,000 |