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Home / Gallons (US) to Liters

Convert Gallons to Liters

Enter a value in gallons and get its equivalent in liters instantly. 1 gal = 3.785412 L.

No sign-up and nothing uploaded to a server: everything happens in your browser. See for yourself.

How to use: Gallons (US) to Liters

  1. Enter the value in gallons.
  2. The result in liters appears right away.
  3. Use "Swap" if you need the conversion the other way.

Frequently asked questions

How many liters is 5 gal?

5 gal is 18.92706 L.

What is the formula to convert gallons to liters?

Multiply the value in gallons by 3.785412.

How do I convert the other way?

Click "Swap" in the calculator or use the liters to gallons page.

Conversion chart

Gallons (US)Liters
1 gal3.785412 L
5 gal18.92706 L
10 gal37.85412 L
50 gal189.2706 L
100 gal378.5412 L

About this tool

In the United States, gasoline is sold by the gallon; in Mexico, by the liter.

To convert gallons to liters, multiply by 3.785412. In other words, 1 gal = 3.785412 L.

One US gallon equals 3.785 liters.

The imperial gallon (United Kingdom) is different: 4.546 liters.

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