Convert liters to U.S. liquid gallons using the standard conversion factor, with an accurate formula, worked example, common values, and a practical conversion table included.
Converted value = Source value × Conversion factor
For affine conversions such as temperature, an offset is also applied.The tool applies the relevant factor or temperature offset to the source value. Currency outputs require a current exchange-rate source, while cooking volume-to-weight conversions can vary by ingredient density and measuring method.
Convert liters to U.S. liquid gallons by multiplying the volume in liters by 0.2641720524. One liter equals approximately 0.264172 U.S. gallons. Enter the number of liters in the calculator to obtain the equivalent volume in gallons. Unless otherwise stated, this page uses the U.S. liquid gallon rather than the Imperial gallon.
To convert liters to U.S. liquid gallons, multiply the number of liters by 0.2641720524. You can also divide the number of liters by 3.785411784.
1 liter = 0.2641720524 U.S. gallons
1 U.S. gallon = 3.785411784 liters
The U.S. liquid gallon and Imperial gallon are different units. If you need Imperial gallons, use the separate factor: 1 liter = approximately 0.219969 Imperial gallons.
U.S. gallons = liters × 0.2641720524
Alternatively:
U.S. gallons = liters ÷ 3.785411784
The relationship between liters and U.S. gallons is based on defined unit values. The calculator may round the displayed result for readability, but calculations should use the full conversion factor whenever greater precision is required.
Convert 20 liters to U.S. gallons:
Starting value: 20 liters
Calculation: 20 × 0.2641720524 = 5.283441048
Final value: 20 liters is approximately 5.283441 U.S. gallons.
| Liters (L) | U.S. Gallons (gal) |
|---|---|
| 1 L | 0.264172 gal |
| 2 L | 0.528344 gal |
| 3 L | 0.792516 gal |
| 4 L | 1.056688 gal |
| 5 L | 1.320860 gal |
| 10 L | 2.641721 gal |
| 15 L | 3.962581 gal |
| 20 L | 5.283441 gal |
| 25 L | 6.604301 gal |
| 30 L | 7.925162 gal |
| 40 L | 10.566882 gal |
| 50 L | 13.208603 gal |
| 75 L | 19.812904 gal |
| 100 L | 26.417205 gal |
| 150 L | 39.625808 gal |
| 200 L | 52.834410 gal |
| 250 L | 66.043013 gal |
| 500 L | 132.086026 gal |
| 750 L | 198.129039 gal |
| 1,000 L | 264.172052 gal |
A liter is a unit of volume with the symbol L or l. It is accepted for use with the International System of Units and is commonly used worldwide to measure liquids, fuel, beverages, and container capacity. One liter equals exactly 1,000 cubic centimeters or 0.001 cubic meters.
A gallon is a unit of volume represented by the symbol gal. The U.S. liquid gallon is used primarily in the United States and equals exactly 231 cubic inches or 3.785411784 liters.
The Imperial gallon, used in some British and Commonwealth contexts, equals exactly 4.54609 liters. Because the two gallon definitions differ, confirm whether a value refers to U.S. or Imperial gallons before converting.
Certain nations adopt Imperial gallons in contrast to US gallons. Understanding your country of origin's measurement utilization avoids expensive conversion mistakes.
One liter equals about 0.264172 US gallons. To change liters into gallons you must multiply the number of liters by 0.264172. This is the conversion factor used throughout all of the US.
The conversion formula is: US Gallons = Liters 0.264172 For example, if you have 20 liters: 20 0.264172 = 5.28344 US gal This formula is valid for any liquid volume conversions.
It is commonly used in fuel measurement, water storage, cooking, agriculture, manufacturing, laboratory work, construction, vehicle maintenance, and international trade where both metric and US measurement systems are used.
Small differences usually occur because calculators round decimal values differently. Some display four decimal places, while others use six or more. Higher precision produces more accurate results.
Yes. The calculator accepts both whole numbers and decimal values. For example, 2.75 liters converts accurately into approximately 0.726 gallons, making it useful for precise measurements.
One US liquid gallon equals 3.78541 liters. If you need to convert gallons back to liters, multiply the number of gallons by 3.78541.
Enter a known source value, confirm the direction of conversion and compare the result with the level of precision required. Keep extra decimal places for technical work and round only at the final step.
Liters and gallons measure volume, but they belong to different measurement systems. Liters are widely used internationally, while U.S. liquid gallons are commonly used in the United States for fuel, water, beverages, and container capacity.
| Unit | System | Equivalent in Liters |
|---|---|---|
| 1 U.S. liquid gallon | U.S. customary system | 3.785411784 L |
| 1 Imperial gallon | Imperial system | 4.54609 L |
Always confirm which gallon definition applies. For example, 10 liters equals approximately 2.641721 U.S. gallons but only 2.199692 Imperial gallons.
The appropriate number of decimal places depends on how the result will be used. For quick comparisons, rounding to two decimal places is usually sufficient. Measurements involving fuel, manufacturing, laboratory work, or regulated quantities may require additional precision.
Liters measure volume, while pounds measure weight or mass. A universal direct conversion is not possible because the result depends on the substance’s density. One liter of water and one liter of oil occupy the same volume but do not have the same weight.