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Convert Gallons to Liters

gal
L

4 gal = 15.1416 L

L = gal × 3.7854

Convert gallons to liters instantly — type in either box and it works both ways.

How to convert gallons to liters

To convert gallons to liters, multiply the number of gallons by 3.7854.

L = gal × 3.7854

Example: convert 4 gal to L

  1. 4 × 3.7854 = 15.1416
  2. 4 gal = 15.1416 L

1 gal = 3.7854 L and 1 L = 0.264172 gal.

Gallons to Liters conversion chart

Gallons (gal)Liters (L)
0.25 gal0.946353 L
0.5 gal1.8927 L
1 gal3.7854 L
2 gal7.5708 L
3 gal11.3562 L
4 gal15.1416 L
5 gal18.9271 L
10 gal37.8541 L
20 gal75.7082 L
50 gal189.2706 L
100 gal378.5412 L

Frequently asked questions

How do you convert gallons to liters?

To convert gallons to liters, multiply the number of gallons by 3.7854. The formula is L = gal × 3.7854.

How many liters are in one gallon?

1 gal = 3.7854 L.

How do I convert liters back to gallons?

Use the reverse formula: gal = L × 0.264172. For example 1 L = 0.264172 gal.

Is this converter free and accurate?

Yes. It is free, uses exact internationally defined conversion factors, and runs in your browser — nothing you type is sent anywhere.

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