This converter turns liters into US gallons instantly, using the exact factor 1 liter = 0.2641720524 US gallons. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One cubic decimetre — the everyday metric unit for drinks and fuel. Exactly 231 cubic inches — the US liquid gallon used for fuel and milk.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
liters- The amount you are converting, measured in liters
0.2641720524- The exact number of US gallons in one liter
US gallons- The converted result
How it works, step by step
- Enter the number of liters you want to convert.
- The value is multiplied by 0.2641720524, the exact conversion factor.
- The result is displayed in US gallons, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 liters
Multiply 5 by 0.26417205. That gives 1.3209 US gallons. A quick sanity check: one liter is smaller than one US gallon, so the number should get smaller — and it does.
Converting 72 liters
72 × 0.26417205 = 19.0204 US gallons. Working backwards, 19.0204 ÷ 0.26417205 returns 72 liters, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many US gallons are in one liter?
Exactly 0.2641720524. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert liters to US gallons?
Us Gallons = liters × 0.2641720524. To reverse it, divide instead: liters = US gallons ÷ 0.2641720524, which is the same as multiplying by 3.785411784.
Is the liter bigger than the US gallon?
No. One liter is only 0.264172 of a US gallon, so the US gallon is the larger unit.
Why does my answer differ slightly from other liters to us-gallons converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a liter?
One cubic decimetre — the everyday metric unit for drinks and fuel.
What is a US gallon?
Exactly 231 cubic inches — the US liquid gallon used for fuel and milk.
Liters to US gallons reference table
| Liters | Us Gallons |
|---|---|
| 0.5 L | 0.132086 gal |
| 1 L | 0.264172 gal |
| 2 L | 0.528344 gal |
| 3 L | 0.792516 gal |
| 5 L | 1.3209 gal |
| 10 L | 2.6417 gal |
| 15 L | 3.9626 gal |
| 20 L | 5.2834 gal |
| 25 L | 6.6043 gal |
| 50 L | 13.2086 gal |
| 75 L | 19.8129 gal |
| 100 L | 26.4172 gal |
| 250 L | 66.043 gal |
| 500 L | 132.086 gal |
| 1000 L | 264.1721 gal |
Exact factor: 1 liter = 0.2641720524 US gallons. Values rounded for display.