Convert US Gallons to US Fluid Ounces
1 US Gallon (US gal) = 128 US Fluid Ounces (US fl oz). Use the free converter below to instantly convert any us gallon value to us fluid ounces, or view the full conversion table and formula.
1 US gal = 128 US fl oz
US Gallon to US Fluid Ounce Conversion Table
How to Convert US Gallons to US Fluid Ounces
To convert us gallons to us fluid ounces, multiply the volume in us gallons by 128. For example, 10 US gal × 128 = 1280 US fl oz.
Worked Example: Convert 2 US gal to US fl oz
Start with the value in us gallons
2 US gal
Apply the formula
US fl oz = 2 × 128
Calculate the result
2 US gal = 256 US fl oz
US Gallon to US Fluid Ounce Examples
0.5 US gal is equal to 64 US fl oz. Using the formula US gal × 128, 0.5 US gal converts to 64 US fl oz.
1 US gal is equal to 128 US fl oz. Using the formula US gal × 128, 1 US gal converts to 128 US fl oz.
1.5 US gal is equal to 192 US fl oz. Using the formula US gal × 128, 1.5 US gal converts to 192 US fl oz.
2 US gal is equal to 256 US fl oz. Using the formula US gal × 128, 2 US gal converts to 256 US fl oz.
3 US gal is equal to 384 US fl oz. Using the formula US gal × 128, 3 US gal converts to 384 US fl oz.
4 US gal is equal to 512 US fl oz. Using the formula US gal × 128, 4 US gal converts to 512 US fl oz.
5 US gal is equal to 640 US fl oz. Using the formula US gal × 128, 5 US gal converts to 640 US fl oz.
6 US gal is equal to 768 US fl oz. Using the formula US gal × 128, 6 US gal converts to 768 US fl oz.
Converting US Fluid Ounces to US Gallons
Need the reverse conversion? Use the table below for a quick reference converting us fluid ounces back to us gallons.
| US Fluid Ounces (US fl oz) | US Gallons (US gal) |
|---|---|
| 1 | 0.007813 |
| 2 | 0.015625 |
| 3 | 0.023438 |
| 4 | 0.03125 |
| 5 | 0.039063 |
| 6 | 0.046875 |
US Gallons to US Fluid Ounces FAQ
How many us fluid ounces is 1 us gallon?
1 us gallon equals approximately 128 us fluid ounces.
What is the formula to convert us gallons to us fluid ounces?
Multiply the value in us gallons by 128 to get us fluid ounces. Formula: US fl oz = US gal × 128.
How many us gallons is 1 us fluid ounce?
1 us fluid ounce equals approximately 0.0078125 us gallons.
Understanding US Gallons and US Fluid Ounces
What is an US Gallon (US gal)?
The us gallon (US gal) is a unit of volume in the imperial system. It is commonly abbreviated as US gal and relates to us fluid ounces by a factor of 128.
What is an US Fluid Ounce (US fl oz)?
The us fluid ounce (US fl oz) is a unit of volume in the imperial system. It is commonly abbreviated as US fl oz and relates to us gallons by a factor of 0.007813.