How to Convert Liters to Gallons
Our free Liters to Gallons converter lets you instantly convert volumes in both directions — no sign-up, no downloads, and 100% private since everything runs in your browser. Whether you're checking fuel economy (L/100km to MPG), sizing an aquarium, mixing chemicals, or working with US recipes, this tool gives you instant accurate results with bonus conversions to milliliters, quarts, pints, and fluid ounces.
Why Use UtilDaily's Liters to Gallons Converter?
Our Liters to Gallons converter is designed for accuracy and ease of use. Whether you're converting fuel economy, calculating aquarium capacity, or working with recipes from different countries, you'll find everything you need in one place.
- Instant bidirectional conversion between liters and US gallons — type in either field and the other updates automatically
- Exact NIST-defined conversion (3.785411784 L per US gallon) — no rounding errors
- 100% private and free — everything runs in your browser with no data sent to any server, no sign-up, and no limits
- Common reference tables for fuel tanks, aquariums, water heaters, and hot tubs
- Bonus conversions to milliliters, quarts, pints, cups, and fluid ounces
- Click-to-load common values in the reference table
Frequently Asked Questions
How many gallons is 1 liter?
1 liter = 0.264172 US gallons. The conversion is exact: 1 US gallon = 3.785411784 L (NIST definition), so 1 L = 1/3.785411784 = 0.264172 gal. So: 1 L = 0.264 gal, 2 L = 0.528 gal, 5 L = 1.321 gal, 10 L = 2.642 gal, 20 L = 5.283 gal, 50 L = 13.21 gal, 100 L = 26.42 gal.
How many gallons is 20 liters?
20 liters = 5.283 US gallons. This is a typical small car fuel tank size. Common fuel tank sizes: 35 L = 9.25 gal, 45 L = 11.89 gal, 60 L = 15.85 gal, 80 L = 21.13 gal, 100 L = 26.42 gal.
How many gallons is 50 liters?
50 liters = 13.21 US gallons. This is a typical mid-size car fuel tank. Common references: a 50 L barrel = 13.21 gal, a 50 L aquarium = 13.21 gal, 50 L of water = 13.21 gal = 50 kg.
How many gallons is 100 liters?
100 liters = 26.42 US gallons. This is the size of a small hot tub or large aquarium. Common references: 100 L = 26.42 gal, 200 L = 52.83 gal (bathtub), 500 L = 132.09 gal (water tank), 1000 L = 264.17 gal (cubic meter).
How many liters in a US gallon vs UK (imperial) gallon?
A US liquid gallon = 3.785411784 liters (used in the US, most international contexts). A UK imperial gallon = 4.54609 liters (used in UK and some Commonwealth countries for older measurements). The UK gallon is 20% larger. Our calculator uses the US gallon.
How many gallons in a 2-liter soda bottle?
A 2-liter soda bottle = 0.528 US gallons = 67.6 fluid ounces. So 2 L bottles contain about half a gallon of soda. Common bottle sizes: 0.5 L = 0.13 gal, 1 L = 0.26 gal, 1.5 L = 0.40 gal, 2 L = 0.53 gal, 3 L = 0.79 gal.
How do I convert L/100km to MPG (US)?
To convert L/100km to MPG (US): divide 235.215 by the L/100km value. For example: 8 L/100km = 29.4 MPG, 10 L/100km = 23.5 MPG, 12 L/100km = 19.6 MPG. The conversion is: MPG = 235.215 / (L per 100 km). This uses the exact factor of 3.785411784 L per US gallon and 1.609344 km per mile.
How many gallons is a 60-liter tank?
60 liters = 15.85 US gallons. This is a typical sedan fuel tank. Common car fuel tanks in liters: 35 L (compact), 45-50 L (sedan), 60-65 L (mid-size), 80-100 L (truck/SUV), 100+ L (heavy-duty truck).
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