Formula to convert 21.4 liters to gallons is to multiply 21.4 by 0.264172 (this is the value for 1 liter to gallon).
Convert 21.4 Liters to Gallons results
21.4 x 0.264172052 = 5.65328192136
21.4 l = 5.65 gal
To conclude the answer for 21.4 liters is five point sixty five gallons