A quintal is a metric unit of mass equal to 100 kilograms.
Quintal is used for huge measures.
It is used in International Measurement systems to measure big weights.
In the International Measurement System, Kilogram is used to measure the mass, and a quintal is one of the big units.
Quintal is the traditional unit used in many countries. In British English, it is called hundredweight, and it is normally measured as 100 kilograms in the American English language.