Liter (L)

Definition

The liter (L) is a metric unit of volume defined as the volume of a cube measuring 10 centimeters on each side. It is not an SI base unit but is accepted for use with the SI. The exact definition is 1 L = 1,000 cm³.

History

The liter was first introduced in France in the late 18th century, specifically in 1795. It was originally defined as the volume of one kilogram of water at 4°C. In 1964, the International System of Units (SI) redefined the liter to better align with metric standards.

Uses

Liters are commonly used in daily life for measuring liquids, such as beverages and cooking ingredients. In science and engineering, liters are used in chemistry for measuring solutions and gases. Many countries around the world, especially those using the metric system, utilize liters for various applications, including automotive fuel and medication dosages.

Conversions

  • 1 L = 1,000 mL (milliliters)
  • 1 L = 0.264 gal (US gallons)
  • 1 L = 0.220 gal (UK gallons)

Fun Facts

  • A common misconception is that a liter is equivalent to a quart; it is actually slightly less.
  • The liter is widely used in the food industry for labeling beverage containers.
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