Gallons to Liters
1 gal = 3.785412 L. US gallons of fuel or paint in liters. Change the value and the result updates as you type.
Result
- Result
- 18.927059 L
- Formula
5 gal × 3.785412 = 18.927059 L
- All units
18,927.05892 ml 18,927.05892 cc 18.927059 L 0.018927 m³ 3,840 tsp 1,280 tbsp 640 fl oz 80 cup 40 pt 20 qt 5 gal 4.163371 gal (UK)
Popular quick answers
How to use this tool
- Enter the volume as a number. Decimals and thousands separators are fine.
- Choose the unit you have on the left and the unit you want on the right.
- Read the result and the formula; press Copy to put the value on your clipboard.
- Use the table underneath to see the same volume in every other unit at once.
Good to know
- US customary units are used for cup, pint, quart and gallon; the UK gallon is listed separately.
- Results show up to six decimals with trailing zeros removed.
Frequently asked questions
How many liters are in a US gallon?
A US gallon is exactly 3.785411784 liters, because it is defined as 231 cubic inches. The UK imperial gallon is larger at 4.54609 liters, so a British "gallon" of fuel is about 20% more than an American one. Pick the right gallon in the list before converting.
Which cup does this converter use?
The US customary cup of 236.588 ml, which is what American recipes mean. The US "legal" cup on nutrition labels is 240 ml, the metric cup used in Australia is 250 ml, and Korean and Japanese recipes often mean a 200 ml cup. For baking, the difference between 236 and 250 ml is small but not nothing.
Is a fluid ounce the same as an ounce of weight?
No. A fluid ounce measures volume (29.5735 ml for the US version) while an ounce measures mass (28.3495 g). They only coincide roughly for water. Use the weight converter for grams and ounces of ingredients and this page for liquids.
How many tablespoons are in a cup?
There are 16 US tablespoons in a US cup, 3 teaspoons in a tablespoon and 2 tablespoons in a fluid ounce. The converter shows these relationships in the unit table so you can scale a recipe up or down without a calculator.
Are ml and cc the same?
Yes. One cubic centimeter is exactly one milliliter; "cc" is just the older name that engines, syringes and some medical dosing still use. Enter the number in either unit and the other is identical.
Results are estimates for general information. Double-check anything important with an official source.