Gallon Converter
Unit ConversionConvert gallons to liters, cubic feet, cubic meters, milliliters, and cubic inches. Type any value into any field and every other unit updates instantly.
Gallon
Metric
Imperial / US
1 Gallons = 3.785412 Liters ⟷ 1 Liters = 0.264172 Gallons
1 Gallons = 3,785.411784 Milliliters ⟷ 1 Milliliters = 0.000264 Gallons
1 Gallons = 0.003785 Cubic Meters ⟷ 1 Cubic Meters = 264.172052 Gallons
1 Gallons = 0.133681 Cubic Feet ⟷ 1 Cubic Feet = 7.480519 Gallons
1 Gallons = 231 Cubic Inches ⟷ 1 Cubic Inches = 0.004329 Gallons
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Odeh Ahwal0people find this calculator helpful
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Frequently Asked Questions
How many liters are in a gallon?
1 US gallon equals exactly 3.785411784 liters, the official US liquid gallon definition.
How many cups are in a gallon?
1 US gallon equals 16 cups. This tool converts between liters, cubic feet, cubic meters, and cubic inches — for cup-specific conversions, see the dedicated cups converter.
Is the US gallon the same as the UK gallon?
No — this converter uses the US liquid gallon (3.785411784 liters). The UK imperial gallon is larger, at approximately 4.546 liters.