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Gallon to Liter Converter

Convert gallons to liters online. 1 gal = 3.785412 L. Free, instant Gallon-to-Liter converter. Works both ways with a formula and reference table.

Gallon → Liter

1 gal = 3.785412 L

Gallon to Liter conversion table

Gallon (gal)Liter (L)
1 gal3.785412 L
2 gal7.570824 L
5 gal18.927059 L
10 gal37.854118 L
25 gal94.635295 L
50 gal189.270589 L
100 gal378.541178 L
  • Instant, live Gallon ↔ Liter conversion
  • Accurate to the exact conversion factor
  • Converts in both directions
  • Reference table of common values
  • 100% private — runs entirely in your browser
  • Free, no sign-up, works offline

How to use the Gallon to Liter Converter

  1. 1

    Type the number of gallons in the first box.

  2. 2

    Read the equivalent value in liters instantly in the second box.

  3. 3

    Or type a Liter value to convert back to gallons — it works both ways.

  4. 4

    Copy the result, or check the reference table for common conversions.

About the Gallon to Liter Converter

The ByteTools Gallon to Liter Converter changes gallons into liters instantly. One Gallon equals 3.785412 Liters (L), and the tool applies that exact factor as you type so you get a precise answer every time.

Volume conversions are everyday tasks in cooking and baking, chemistry, fuel and drinks, bridging metric litres and US customary cups and gallons. Everything is calculated locally in your browser — nothing is uploaded — so it is fast, private and works offline. Enter a number in either box to convert both ways, and use the table for common Gallon-to-Liter values at a glance.

Frequently asked questions

How many Liters are in a Gallon?

One Gallon equals 3.785412 Liters (L). To convert, multiply the number of Gallons by 3.785412. For example, 10 Gallons = 37.854118 Liters.

What is the formula to convert Gallons to Liters?

Multiply the Gallon value by 3.785412 to get Liters. In symbols, L = gal × 3.785412. This converter applies the exact factor automatically so you never round by hand.

How do I convert Liters back to Gallons?

Divide by 3.785412, or multiply by 0.26417205. You can also use our Liter to Gallon converter for the reverse direction — it uses the same exact factor.

Is this Gallon to Liter converter free and private?

Yes. The conversion runs entirely in your browser with JavaScript — nothing you type is uploaded, logged or stored. It is completely free, needs no sign-up and keeps working offline once loaded.

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