20 Liters To Gallons. Web 20 gallons is bigger than 20 liters. Liters to us gallons (dry) convert table. Web after successfuly calculating it the result should for 20 litres to gallons should be 5.28. 20 gal to l conversion. L รท 3.78541 = gal. The answer is that 20 liters. Gallons and liters are …