Formula to convert 23.5 liters to gallons is to multiply 23.5 by 0.264172 (this is the value for 1 liter to gallon).
Convert 23.5 Liters to Gallons results
23.5 x 0.264172052 = 6.2080432314
23.5 l = 6.21 gal
To conclude the answer for 23.5 liters is six point twenty one gallons