21 hectolitres equals 476.73 gallons.
Convert 21 hectolitres into litres, cubic decimeters, mililitres, cubic centimeters, kilolitres, meters cubeds, pints, quarts, cubic feet, cubic inches, etc...
Convert 477 gallons into litres, cubic decimeters, mililitres, cubic centimeters, kilolitres, meters cubeds, pints, quarts, cubic feet, cubic inches, etc...