Conversion formula

The conversion factor from gallons to liters is 3.7854118, which means that 1 gallon is equal to 3.7854118 liters:

1 gal = 3.7854118 L

To convert 20.4 gallons into liters we have to multiply 20.4 by the conversion factor in order to get the volume amount from gallons to liters. We can also form a simple proportion to calculate the result:

1 gal → 3.7854118 L

20.4 gal → V_(L)

Solve the above proportion to obtain the volume V in liters:

V_(L) = 20.4 gal × 3.7854118 L

V_(L) = 77.22240072 L

The final result is:

20.4 gal → 77.22240072 L

We conclude that 20.4 gallons is equivalent to 77.22240072 liters:

20.4 gallons = 77.22240072 liters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 liter is equal to 0.012949610354978 × 20.4 gallons.

Another way is saying that 20.4 gallons is equal to 1 ÷ 0.012949610354978 liters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty point four gallons is approximately seventy-seven point two two two liters:

20.4 gal ≅ 77.222 L

An alternative is also that one liter is approximately zero point zero one three times twenty point four gallons.

Conversion table

gallons to liters chart

For quick reference purposes, below is the conversion table you can use to convert from gallons to liters