15 Gallon (US) (gal) to Litre (l)
15 gal = 56.78115 l
15 Gallon (US) equals 56.78115 Litre — that is, 15 gal = 56.78115 l. You get there by multiplying the value in Gallon (US) by 3.78541, the conversion factor between these two Volume units. The table below covers the other most-searched values, and the converter accepts any number.
Formula
l = gal × 3.78541gal to l conversion table
Frequently asked questions
How many l are in 15 gal?+
15 Gallon (US) equals 56.78115 Litre, so 15 gal = 56.78115 l.
What is the formula to convert gal to l?+
Multiply the number of Gallon (US) by 3.78541. In other words: l = gal × 3.78541.
How much is 1 gal in l?+
1 Gallon (US) = 3.78541 Litre (1 gal = 3.78541 l).
Is this conversion exact?+
Yes. The factor used is the unit’s official definition; results are rounded to 10 significant digits for readability.