About converting US gallon to Fluid ounce
This page converts US gallon (gal) to Fluid ounce (fl oz). Enter a value above to get an immediate result with the target unit clearly shown.
US gallon to Fluid ounce formula
To convert from US gallon to Fluid ounce, multiply the starting value by 128. This factor expresses how one US gallon relates to the selected Fluid ounce unit.
Conversion example: 100 gal × 128 = 12800 fl oz. Therefore, 100 US gallon equals 12800 Fluid ounce.
This US gallon to Fluid ounce conversion compares two units used to express the space occupied by a liquid, gas, or container. Use US gallon (gal) as the source unit when your original value is recorded in that unit; the calculated result is then presented in Fluid ounce (fl oz).