Duhaime's Law Dictionary

Quantum Definition:

Latin: amount or extent.

Related Terms: Quantum Meruit, Damages

According to Latin for Lawyers, quantum has variations such as quantus and quanta, and means:

"... how great, as, such."

James Ballentine's Law Dictionary:

"Quantum: quantity or amount. So much. How much."

In Connelly v Western Union, the Court defined quantum as the sum total of two or more particular sums or quantities; the aggregate; the whole quantity; a totality.

The term is part of the quantum meruit maxim and used to denote monetary damages (as in the quantum of damages) in a personal injury case. For example, this title of an English law book:

"Kemp, David, The Quantum of Damages in a Personal Injury Case (London: Sweet & Maxwell, 2004)"


  • Anon., Latin for Lawyers, 3rd Ed. (London: Sweet & Maxwell Limited, 1960), page 1036
  • Connelly v Western Union Tele. Co., 40 S.E. 618; also at 100 Va. 51 (Virginia, 1902)

Categories & Topics:

Always looking up definitions? Save time with our search provider (modern browsers only)

If you find an error or omission in Duhaime's Law Dictionary, or if you have suggestion for a legal term, we'd love to hear from you!