How many gallons (us) in 1 L?
1 L = 0.2641720524 gal. The other way round: 1 gal = 3.785411784 L. A litre is one cubic decimetre (1,000 cm³), a definition in force since 1964. The US liquid gallon is 231 cubic inches, exactly 3.785411784 L; US fuel prices are quoted per gallon. The imperial (UK) gallon is larger: 4.54609 L.
Liters to gallons (us) conversion table
1 L = 0.2642 gal · 2 L = 0.5283 gal · 3 L = 0.7925 gal · 4 L = 1.0567 gal · 5 L = 1.3209 gal · 6 L = 1.585 gal · 7 L = 1.8492 gal · 8 L = 2.1134 gal · 9 L = 2.3775 gal · 10 L = 2.6417 gal · 12 L = 3.1701 gal · 15 L = 3.9626 gal · 20 L = 5.2834 gal · 25 L = 6.6043 gal · 30 L = 7.9252 gal · 40 L = 10.5669 gal · 50 L = 13.2086 gal · 75 L = 19.8129 gal · 100 L = 26.4172 gal · 1,000 L = 264.1721 gal
How to convert liters to gallons (us)
Divide the value by 3.785411784. Example: 37 L = 9.7744 gal.
Unit Converter
How to use
- 1Pick a category — length, weight, temperature, volume, area, speed, data, time, pressure or energy.
- 2Choose the “from” and “to” units, or press swap to reverse them.
- 3Type a value in either field — the other side updates as you type.
- 4Adjust the decimal precision and check the conversion table for common values.
Exact conversion factors
Many imperial units are defined exactly in metric terms: 1 inch = 2.54 cm, 1 foot = 0.3048 m, 1 mile = 1.609344 km, 1 pound = 0.45359237 kg and 1 US gallon = 3.785411784 litres. The converter uses these definitions, so results are as precise as the decimals you choose to show. The formula is displayed in words — for example “multiply by 2.54” — so you can repeat the calculation by hand.
Temperature is different
Celsius, Fahrenheit and Kelvin do not share a zero point, so temperature cannot be converted with a single factor. °F = °C × 9/5 + 32 and °C = (°F − 32) × 5/9; Kelvin is Celsius + 273.15. That is why 0 °C is 32 °F, while a 10-degree change in Celsius is an 18-degree change in Fahrenheit.
US vs UK units and data sizes
A US gallon (3.785 L) is smaller than an imperial UK gallon (4.546 L), and US fluid ounces differ slightly from UK ones — check which system your recipe or spec uses. For data sizes, storage makers use decimal units (1 GB = 1,000 MB), while operating systems often count in binary units (1 GiB = 1,024 MiB), which is why a new drive shows less capacity than the label.
Frequently asked questions
How many centimetres are in an inch?
Exactly 2.54 cm. To convert cm to inches, divide by 2.54.
How do I convert kg to pounds?
Multiply kilograms by about 2.20462. One pound is exactly 0.45359237 kg.
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. For example, 20 °C × 1.8 + 32 = 68 °F.
Can I convert in both directions?
Yes. Type in either field and the other updates, or press swap to switch the units.
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