Litres to Gallons (US) Converter (L to gal)

Convert litres to gallons (us) instantly. 1 L = 0.2642 gal. Includes the formula, a full conversion table and a calculator that works offline.

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The formula

To convert litres to gallons (us), multiply by 0.2642:

gal = L × 0.2642

Going the other way, divide instead — or multiply by 3.785, which is the same thing:

L = gal × 3.785

Litres to Gallons (US) conversion table

LitresGallons (US)
1 L0.2642 gal
2 L0.5283 gal
3 L0.7925 gal
4 L1.057 gal
5 L1.321 gal
6 L1.585 gal
7 L1.849 gal
8 L2.113 gal
9 L2.378 gal
10 L2.642 gal
15 L3.963 gal
20 L5.283 gal
25 L6.604 gal
30 L7.925 gal
40 L10.567 gal
50 L13.209 gal
75 L19.813 gal
100 L26.417 gal
250 L66.043 gal
500 L132.09 gal
1000 L264.17 gal

Gallons (US) to Litres

Gallons (US)Litres
1 gal3.785 L
2 gal7.571 L
3 gal11.356 L
4 gal15.142 L
5 gal18.927 L
6 gal22.712 L
7 gal26.498 L
8 gal30.283 L
9 gal34.069 L
10 gal37.854 L

What that actually looks like

A conversion factor is hard to judge on its own. These are quantities most people already have a feel for, converted for you:

Why both units are still in use

Volume has a hidden complication: the US and imperial systems use the same words for different amounts. A US gallon is 3.785 litres, while an imperial gallon is 4.546 litres — about 20 percent larger. The same is true of pints and fluid ounces. This page uses US measures, which is what recipes and fuel prices mean unless they say otherwise.

Mistakes worth avoiding

Check whether a recipe is American or British before converting. A US cup is 237 ml and an imperial cup is 284 ml, which is enough of a difference to ruin baking. If a recipe lists ounces for a solid ingredient it means weight, not fluid ounces.

The other habit worth breaking is rounding too early. Convert first, round once at the end, and you avoid the drift that turns a small approximation into a visible error by the third calculation.

Doing it in your head

When you only need a rough answer, multiply by 4 and divide by 15 — which lands within 0.9 percent of the true value. Ten litres works out at roughly 2.667 gallons (US) that way, against 2.642 exactly. An estimate is enough for deciding whether something will fit or whether a figure sounds plausible. When the number has to be right — because you are buying, cooking or building to it — use the calculator and let it carry the decimals.

Common questions

How many gallons (us) are in one litre?

One litre equals 0.2642 gallons (us). The calculator above handles any value, including decimals and very large numbers, and updates as you type.

Is this an exact conversion?

The factor is accurate to the precision shown, which is far beyond what any practical measurement requires. The table rounds for readability; the calculator does not.

Does this work offline?

Yes. The conversion runs in your browser with no network request, so it works on a plane, in a basement, or on a phone with no signal once the page has loaded.