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Volume

gal (US)toL

Convert US gallons (gal (US)) to litres (L).

Factor1 gal (US) = 3.785412 L

Converter

gal (US)

Accepts numbers or expressions, e.g. 150 + 14.7

Result
37.8541L

Rendered to 6 significant figures.

Formula

Formula
L = gal (US) × 3.785412

Multiply any value in US gallons by 3.785412 to obtain the value in litres.

Worked example

Convert 10 gal (US) to L.

  1. 01Start with 10 gal (US).
  2. 02Multiply by the conversion factor: 10 × 3.785412 = 37.8541 L.
Result10 gal (US) = 37.8541 L

Conversion table

gal (US)L
13.7854
27.5708
518.927
1037.854
2075.708
50189.27
100378.54
200757.08
5001892.7
10003785.4

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gal (US) to L?
1 gal (US) equals 3.785412 L. To convert, multiply the value in US gallons by 3.785412.
How do I convert 1 gal (US) to L?
1 gal (US) = 3.78541 L. For any value, multiply by 3.785412.
How do I convert L back to gal (US)?
Divide by the same factor — or equivalently, multiply by 0.2641721. So 1 L = 0.264172 gal (US).
When would I need to convert US gallon to litre?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
Yes. Both gal (US) and L are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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