120 liters is equivalent to 31.7006462829778 US gallons.

We know (by definition) that: 1 liter ≈ 0.264172052358148 usgallon

We can set up a proportion to solve for the number of US gallons.

1   liter 120   liter ≈ 0.264172052358148   usgallon x   usgallon

Now, we cross multiply to solve for our unknown x:

x   usgallon ≈ 120   liter 1   liter * 0.264172052358148   usgallon → x   usgallon ≈ 31.70064628297776   usgallon

Conclusion: 120   liter ≈ 31.70064628297776   usgallon

The inverse of the conversion factor is that 1 US gallon is equal to 0.0315450982 times 120 liters.

It can also be expressed as: 120 liters is equal to 1 0.0315450982 US gallons.

Approximation

An approximate numerical result would be: one hundred and twenty liters is about thirty-one point six nine US gallons, or alternatively, a US gallon is about zero point zero three times one hundred and twenty liters.

Units involved

This is how the units in this conversion are defined:

Liters

"The litre (British spelling) or liter (American spelling) is an SI accepted metric system unit of volume equal to 1 cubic decimetre (dm3), 1,000 cubic centimetres (cm3) or 1/1,000 cubic metre. A cubic decimetre (or litre) occupies a volume of 10×10×10 centimetres (see figure) and is thus equal to one-thousandth of a cubic metre."

Us Gallons

"The US gallon is legally defined as 231 cubic inches, which is exactly 3.785411784 liters.[2][3] A US liquid gallon of water weighs about 8.34 pounds or 3.78 kilograms at 62 °F (17 °C), making it about 16.6% lighter than the imperial gallon. There are four quarts in a gallon, two pints in a quart and 16 US fluid ounces in a US pint, which makes the US fluid ounce equal to 1⁄128 of a US gallon."

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.

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