Formula to convert 31.9 liters to gallons is to multiply 31.9 by 0.264172 (this is the value for 1 liter to gallon).
Convert 31.9 Liters to Gallons results
31.9 x 0.264172052 = 8.42708847156
31.9 l = 8.43 gal
To conclude the answer for 31.9 liters is eight point forty three gallons