Liters to US Gallons
Convert liters to US gallons.
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Example
10 L = 2.64 gal
How it works
This formula converts a volume measured in liters into US gallons by using the fixed conversion factor between the two units. One liter is about 0.2642 US gallons, so multiplying by 0.2642 rescales the volume into gallons without changing the amount of liquid. The factor comes from the exact relationship between metric and US customary volume units, rounded to four decimal places for convenience.
When to use it
Use this when you need to compare or report liquid volumes in US gallons instead of liters, such as in cooking, fuel measurements, aquariums, or shipping containers. It is especially useful when a label, recipe, or specification gives the amount in liters but your tools or instructions use gallons.
Worked example, step by step
Convert 15 L to US gallons Step 1: Write the formula: gal = L × 0.2642 Step 2: Substitute 15 for L: gal = 15 × 0.2642 Step 3: Multiply: gal = 3.963 Step 4: Round to two decimals if needed: 3.96 gal
Common mistakes to avoid
- Using the US gallon factor for a UK/imperial gallon conversion, which gives a different answer
- Multiplying by 3.785 instead of 0.2642; 3.785 is for gallons to liters, not liters to gallons
- Forgetting to include the unit in the final answer, or rounding too early before finishing the calculation
Did You Know?
A US gallon and an imperial gallon differ by about 20%, a mismatch that confuses fuel economy comparisons.
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