Formula to convert 56.9 liters to gallons is to multiply 56.9 by 0.264172 (this is the value for 1 liter to gallon).
Convert 56.9 Liters to Gallons results
56.9 x 0.264172052 = 15.03138978156
56.9 l = 15.03 gal
To conclude the answer for 56.9 liters is fifteen point zero three gallons