US Gallons to US Fluid Ounces Converter
1 US Gallon = 128 US Fluid Ounces
gal
fl oz
1 gal = 128 fl oz. To convert us gallons to us fluid ounces, multiply by 128; to convert back, multiply by 0.0078125.
Conversion formula
1 gal = 128 fl oz
To convert from US Gallons to US Fluid Ounces, multiply the value in us gallons by 128.
| US Gallons (gal) | US Fluid Ounces (fl oz) |
|---|---|
| 0.001 | 0.128 |
| 0.01 | 1.28 |
| 0.1 | 12.8 |
| 1 | 128 |
| 2 | 256 |
| 5 | 640 |
| 10 | 1,280 |
| 25 | 3,200 |
| 50 | 6,400 |
| 100 | 12,800 |
| 250 | 32,000 |
| 500 | 64,000 |
| 1000 | 128,000 |
1 us gallon in every volume unit
| Liters | 3.78541 L |
| Milliliters | 3,785.41 mL |
| Cubic Meters | 0.00378541 m3 |
| Cubic Centimeters | 3,785.41 cm3 |
| Imperial Gallons | 0.832674 imp gal |
| US Quarts | 4 qt |
| US Pints | 8 pt |
| US Cups | 16 cup |
| US Fluid Ounces | 128 fl oz |
| Tablespoons | 256 tbsp |
| Teaspoons | 768 tsp |
Frequently Asked Questions
How many us fluid ounces are in 1 us gallon?
1 us gallon equals 128 us fluid ounces. So 10 us gallons are 1,280 us fluid ounces and 100 us gallons are 12,800 us fluid ounces.
How do I convert us gallons to us fluid ounces by hand?
Multiply the number of us gallons by 128. To go the other way, multiply us fluid ounces by 0.0078125 (or divide by 128).
How many us gallons are in 1 us fluid ounce?
1 us fluid ounce equals 0.0078125 us gallons.