🧪 Gallons to Liters
Convert gallons to liters instantly. Free online US and UK gallons to liters converter.
Formula: liters = US gallons × 3.78541 | liters = UK gallons × 4.54609
Conversion Reference Table
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How to Convert Gallons to Liters
One US gallon equals 3.78541 liters. One UK (imperial) gallon equals 4.54609 liters. To convert US gallons to liters, multiply by 3.78541. Common conversions: 1 US gal = 3.785 L, 5 gal = 18.93 L, 10 gal = 37.85 L, 55 gal (standard drum) = 208.2 L.
This conversion is useful when travelling from the US to a metric country (or vice versa), when comparing fuel tank sizes, or when following recipes that use gallons. A standard US bathtub holds approximately 40–60 gallons (151–227 liters). A standard US water heater holds 40–80 gallons (151–303 liters).
About This Gallons To Liters
This free gallons to liters is designed to give you instant, accurate results without any complicated steps. Simply enter your value, select your units, and the result appears immediately — no need to click a calculate button. All calculations are performed locally in your browser, so your data stays private and the tool works even without an internet connection.
How to Use This Calculator
Using this gallons to liters is straightforward. Enter the value you want to convert or calculate in the input field, choose your starting unit from the dropdown menu, and the converted result will appear instantly in all available units. You can also use the swap button to reverse the conversion direction with a single click.
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