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Conversion Formula

Liters = US Gallons × 3.785

US Gallons to Liters Conversion Table

US Gallons (gal)Liters (L)
1 gal3.785 L
2 gal7.57 L
5 gal18.925 L
10 gal37.85 L
15 gal56.775 L
20 gal75.7 L
25 gal94.625 L
50 gal189.25 L
100 gal378.5 L
500 gal1892.5 L

About US Gallons

The US gallon is an imperial unit of volume equal to 128 fluid ounces or approximately 3.785 liters. It is used primarily in the United States for fuel pricing, milk packaging, and large volume liquid measurements.

Real-World Examples

  • The average American uses about 80 to 100 gallons of water per day
  • A standard gas tank for a sedan holds 12 to 16 gallons
  • A residential swimming pool holds 15,000 to 30,000 gallons

💡 Did you know? The US gallon and the imperial (UK) gallon are different sizes. A US gallon is 3.785 liters, while an imperial gallon is 4.546 liters, making it about 20% larger.

About Liters

The liter is a metric unit of volume equal to 1,000 cubic centimeters or 1 cubic decimeter. It is the standard unit for measuring liquids in most countries and is widely used in food and beverage packaging.

Real-World Examples

  • A standard water bottle holds 0.5 or 1 liter
  • An average bathtub holds 150 to 300 liters of water
  • Car engine displacement is measured in liters (e.g., a '2.0L engine')

💡 Did you know? One liter of water at 4°C weighs exactly 1 kilogram, creating a beautifully simple relationship between mass and volume in the metric system.

Frequently Asked Questions

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