US gallons to US fluid ounces
Convert us gallon to us fluid ounce — instant, free, with the formula shown.
1 gal (US)=128 fl oz (US)
How to convert us gallon to us fluid ounce
To convert us gallon to us fluid ounce, multiply by 128:
fl oz (US) = gal (US) × 128
For example, 10 gal (US) × 128 = 1280 fl oz (US).
gal (US) to fl oz (US) conversion table
| US gallons (gal (US)) | US fluid ounces (fl oz (US)) |
|---|---|
| 1 gal (US) | 128 fl oz (US) |
| 2 gal (US) | 256 fl oz (US) |
| 5 gal (US) | 640 fl oz (US) |
| 10 gal (US) | 1280 fl oz (US) |
| 25 gal (US) | 3200 fl oz (US) |
| 50 gal (US) | 6400 fl oz (US) |
| 100 gal (US) | 12800 fl oz (US) |
| 250 gal (US) | 32000 fl oz (US) |
| 500 gal (US) | 64000 fl oz (US) |
| 1000 gal (US) | 128000 fl oz (US) |
Other us gallon conversions
Convert to us fluid ounce from another unit
gal (US) to fl oz (US) — frequently asked
How many US fluid ounces are in 1 us gallon?
1 us gallon = 128 US fluid ounces (gal (US) × 128 = fl oz (US)).
What is the formula to convert us gallon to us fluid ounce?
Multiply your us gallon value by 128 to get us fluid ounce.
How do I convert 10 US gallons to US fluid ounces?
10 gal (US) = 1280 fl oz (US). For 100 gal (US) the answer is 12800 fl oz (US). Use the calculator on this page for any other value.