Gallons to Liters Conversion

How many liters in a gallon?

To convert gallons to liters please use the conversion tool below. Enter the volume in US gallons into the converter and the result will be displayed.

How many liters (litres) are there in a gallon?

There are 3.78 liters in a gallon in US and 4.54 liters (litres) in a gallon in UK.

Here is how:

For US:

In United States, 1 gallon has a capacity of 128 US fluid ounces (3785.41 mL) and 1 liter is 33.814 US fluid ounces (1000 mL). That makes 128 / 33.814 = 3.785 liters in a gallon in US.

Here is another calculation:

By definition 1 gallon is 231 cubic inches and 1 liter equals to the volume of one kilogram of water (1000 mL or 61.0237 cubic inches), that makes 231 / 61.0237 = 3.785 liters in a gallon in US.

For Imperial System (UK):

In Imperial system 1 gallon has a capacity of 160 imperial fluid ounces (4546.09 mL) and 1 liter is 35.1951 imperial fluid ounces (1000 mL). That makes 160 / 35.1951 = 4.54 litres in an imperial gallon in UK.

How to convert from gallons to liters (litres)?

To convert from gallons to liters, multiply the number of gallons "x" by 3.78 for US and multiply by 4.54 for UK (Imperial system).

For example, to find out how many liters there are in a gallon and a half, multiply 1.5 by 3.78, that makes 5.67 liters in 1.5 gallons.

You may also use this volume units conversion tool to convert between US, imperial gallons and liters.

What is a gallon?

Gallon is an imperial and US customary measurement system volume unit. 1 US fluid gallon is 128 US fluid ounces (3785.41 mL), 1 US dry gallon is 148.94 US fluid ounces (4404.68149 mL) and 1 imperial gallon is 160 imperial fluid ounces (4546.09 mL). The abbreviation is "gal".

Some facts about gallon:

1 US fluid gallon of water weighs about 8.34 lbs or 133.44 ounces or 3.785 kilograms (kilograms equals to 1 liter of water). 1 US fluid gallon of milk weighs about 8.6 pounds (it can be a bit lighter or heavier based on the fat percentage), or 137.6 ounces or 3.9 kilograms.

1 UK gallon of water weighs 10 lbs or 160 ounces or about 4.54 kilograms. 1 UK gallon of milk weighs about 10.3 pounds (it can be a bit lighter or heavier based on the fat percentage), or 164.8 ounces or 4.67 kilograms.

What is a liter (litre)?

Liter (litre) is a metric system volume unit. 1 liter is 1000 mL, 33.814 US fluid ounces and 35.1951 imperial fluid ounces. The abbreviation is "L".

The list for your reference:

1 US Fluid Gallon = 3.7854118 Liters
1 US Dry Gallon = 4.4048838 Liters
1 Imperial Gallon (UK) = 4.54609 Liters

Converter

Enter a US fluid gallon value to convert into liters:

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Gallons to Liters Conversion Table [US]

GallonLiterGallonLiterGallonLiterGallonLiter
1 gal 3.78541 L 26 gal 98.42071 L 51 gal 193.05600 L 76 gal 287.69130 L
2 gal 7.57082 L 27 gal 102.20612 L 52 gal 196.84141 L 77 gal 291.47671 L
3 gal 11.35624 L 28 gal 105.99153 L 53 gal 200.62683 L 78 gal 295.26212 L
4 gal 15.14165 L 29 gal 109.77694 L 54 gal 204.41224 L 79 gal 299.04753 L
5 gal 18.92706 L 30 gal 113.56235 L 55 gal 208.19765 L 80 gal 302.83294 L
6 gal 22.71247 L 31 gal 117.34777 L 56 gal 211.98306 L 81 gal 306.61836 L
7 gal 26.49788 L 32 gal 121.13318 L 57 gal 215.76847 L 82 gal 310.40377 L
8 gal 30.28329 L 33 gal 124.91859 L 58 gal 219.55388 L 83 gal 314.18918 L
9 gal 34.06871 L 34 gal 128.70400 L 59 gal 223.33930 L 84 gal 317.97459 L
10 gal 37.85412 L 35 gal 132.48941 L 60 gal 227.12471 L 85 gal 321.76000 L
11 gal 41.63953 L 36 gal 136.27482 L 61 gal 230.91012 L 86 gal 325.54541 L
12 gal 45.42494 L 37 gal 140.06024 L 62 gal 234.69553 L 87 gal 329.33083 L
13 gal 49.21035 L 38 gal 143.84565 L 63 gal 238.48094 L 88 gal 333.11624 L
14 gal 52.99577 L 39 gal 147.63106 L 64 gal 242.26636 L 89 gal 336.90165 L
15 gal 56.78118 L 40 gal 151.41647 L 65 gal 246.05177 L 90 gal 340.68706 L
16 gal 60.56659 L 41 gal 155.20188 L 66 gal 249.83718 L 100 gal 378.54118 L
17 gal 64.35200 L 42 gal 158.98730 L 67 gal 253.62259 L 125 gal 473.17648 L
18 gal 68.13741 L 43 gal 162.77271 L 68 gal 257.40800 L 150 gal 567.81177 L
19 gal 71.92282 L 44 gal 166.55812 L 69 gal 261.19341 L 175 gal 662.44707 L
20 gal 75.70824 L 45 gal 170.34353 L 70 gal 264.97883 L 200 gal 757.08236 L
21 gal 79.49365 L 46 gal 174.12894 L 71 gal 268.76424 L 250 gal 946.35295 L
22 gal 83.27906 L 47 gal 177.91435 L 72 gal 272.54965 L 300 gal 1135.62354 L
23 gal 87.06447 L 48 gal 181.69977 L 73 gal 276.33506 L 500 gal 1892.70590 L
24 gal 90.84988 L 49 gal 185.48518 L 74 gal 280.12047 L 750 gal 2839.05885 L
25 gal 94.63530 L 50 gal 189.27059 L 75 gal 283.90589 L 1000 gal 3785.41180 L