15 US gallons in liters
Result
The conversion result is: 15 US gallons is equivalent to 56.78117676 liters.[1]
Conversion formula
How to convert 15 US gallons to liters?
We know (by definition) that: 1 usgallon ≈ 3.785411784 liter.
We can set up a proportion to solve for the number of liters.
1 usgallon / 15 usgallon ≈ 3.785411784 liter / x liter
Now, we cross multiply to solve for our unknown x:
x liter ≈ (15 usgallon / 1 usgallon) * 3.785411784 liter → x liter ≈ 56.78117676 liter
Conclusion:
15 usgallon ≈ 56.78117676 liter
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Conversion in the opposite direction
The inverse of the conversion factor is that 1 liter is equal to 0.0176114701572099 times 15 US gallons.
It can also be expressed as: 15 US gallons is equal to 1 / 0.0176114701572099 liters.
Approximation
An approximate numerical result would be: fifteen US gallons is about fifty-six point seven eight liters, or alternatively, a liter is about zero point zero two times fifteen US gallons.
Footnotes
[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.