How Many Liters Are in a Gallon?
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Conversion Formulas
Convert liters to gallons and gallons to liters using our conversion chart, conversion calculator, and learn the relationship between these two units.
Conversion of liters to gallons and gallons to liters is an easy one since both units are units of volume. Just be aware that there are three gallons in general use including US liquid gallon, US dry gallon, and Imperial gallon.
A liter is a metric system unit of volume and is equal to 1 cubic decimeter (dm^{3}), 1000 cubic centimeters (cm^{3}), or 0.001 cubic meters (m^{3}).
One liter occupies a volume of 0.1m x 0.1m x 0.1m and thus equals to onethousandth (0.001 m^{3}) of a cubic meter.
Thus, gallonsliter conversion formulas are:
1 US Liquid Gallon = 128 US Fluid Ounces (fl oz) = 3.78541 liters
1 US Dry Gallon = 148.95 US Fluid Ounces (fl oz) = 4.4049 liters
1 Imp Liquid Gallon = 160 Imp Fluid Ounces = 4.54609 liters
In most situations, US liquid gallons are used for liter to gallon and gallon to liter conversions.
Conversion Examples
If You have 2 gallons (US/Imp) that would be:
V_{(liters)} = 3.78541 * V_{(US fluid gallon)} = 3.78541 * 2 = 7.57082 liters
V_{(liters)} = 4.4049 * V_{(US dry gallon)} = 4.4049 * 2 = 8.8098 liters
V_{(liters)} = 4.54609 * V_{(Imp gallon)} = 4.54609 * 2 = 9.09218 liters
Liters to Gallons and Gallons to Liters Conversion Calculator
In order to convert liters to US fluid gallons and US fluid gallons to liters, feel free to use this conversion calculator  write the value that You have and click 'Calculate' to convert it:
Liters to US Fluid Gallons 
Liters: US Fluid Gallons: 
US Fluid Gallons to Liters 
US Fluid Gallons: Liters: 
Liters to Imperial Gallons 
Liters: Imperial Gallons: 
Imperial Gallons to Liters 
Imperial Gallons: liters: 
Liters to Gallons and Gallons to Liters Conversion Charts
Here are some grams to gallons and gallons to grams quick conversion charts to aid You with units' conversions (again, values are very accurate for plain water, for other liquids, You must also calculate in the liquids' densities):
Liters  US Fluid Gallons  Imperial Gallons 
0.1  0.0264  0.0219 
0.4536  0.1198  0.0997 
1  0.264  0.219 
5  1.32086  1.09985 
10  2.64  2.19 
100  26.4  21.9 
1000  264.1  219.9 

