US gallons to litres

1 gal US = 3.7854118 L. Type a figure below, or scan the table for the usual values.

Volume · base unit L

Gallon (US) → Litre

Type a number, a phrase like 11 stone to kg, or a compound like 5 ft 11 in.

18.927059L

1 gal US = 3.7854118 LL = gal US × 3.7854118

Precision

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32 categories, 300 units. Bare words follow UK usage: pint, gallon, mpg and ton are imperial; US versions are named.

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US gallons to litres quick table

Gallon (US) (gal US)Litre (L)
0.5 gal US1.8927059 L
1 gal US3.7854118 L
1.5 gal US5.6781177 L
2 gal US7.5708236 L
3 gal US11.356235 L
4 gal US15.141647 L
5 gal US18.927059 L
10 gal US37.854118 L
20 gal US75.708236 L
25 gal US94.635295 L
40 gal US151.41647 L
50 gal US189.27059 L
100 gal US378.54118 L

How to convert us gallons to litres

Multiply the gallon (us) figure by 3.7854118 to get litre. Going the other way, divide by 3.7854118, which is the same as multiplying by 0.26417205.

L = gal US × 3.7854118

Example: 5 gal US is 18.927059 L.

Questions

How many litre in a gallon (us)?

1 gal US is 3.7854118 L. Multiply the gallon (us) figure by 3.7854118 to get litre. Going the other way, divide by 3.7854118, which is the same as multiplying by 0.26417205.

What is 5 gal US in L?

5 gal US is 18.927059 L. Type any other figure into the converter above to see it instantly, and the full list under it shows the same amount in every unit of the volume category.

Is us gallons to litres a simple multiplication?

Yes. Multiply by 3.7854118. The factor comes from the units' legal definitions, so the result is exact to the precision shown.

Conversion guides

Formula, quick table and worked examples for the common ones.