Quantity
Quantity (noun) /ˈkwɒn.tɪ.ti/ US /ˈkwɑːn.ţə.ţi/
the number of amount of something that could be measured, extent, capacity, amount, magnitude, value, measure, mass
A large quantity of the students resort to cramming when it comes to final exams.
Antonym: quality
Verb: quantify
Noun: quantification