Hectoliters, also written as hectolitres, is a unit of measurement used to quantify volume. It is equal to one hundred liters, which is approximately equivalent to 26.42 gallons in the United States. A few synonyms for hectoliters include decastere, kiloliter, and myrialiter, which are equivalent to ten, one thousand, and ten thousand liters respectively. These terms are not widely used, and instead, liters, gallons, and barrels are the most common units of volume measurement. Hectolitres are primarily used in the food and beverage industry for measuring the capacity of large containers.