quantify

IPA/ˈkwɒntɪfaɪ/
KK[kwˈɑntɪfˌaɪ]IPA/ˈkwɑːntɪfaɪ/

quantify — verb

  • quantifypresent simple I / you / we / they
  • quantifieshe / she / it
  • quantifiedpast simple
  • quantifying-ing form

1. to find, state, or calculate the exact numerical amount, number, or size of some

1.verbtransitiveB2
Definition

to find, state, or calculate the exact numerical amount, number, or size of something, especially an abstract concept such as risk, satisfaction, or value, so that it can be compared or analysed more precisely.

Example

The research team used a survey to quantify customer satisfaction across different regions.

quantify + abstract noun (customer satisfaction)

Ramón found it difficult to quantify the financial loss caused by the storm.

Common collocations
  • quantify the impact
  • quantify the risk
  • quantify the value
  • quantify the cost
  • difficult to quantify
  • hard to quantify
  • quantify the extent of
  • attempt to quantify
Synonyms
  • measure

    more general; can refer to physical dimensions or abstract amounts, not necessarily expressed as numbers

  • calculate

    focuses on the mathematical process of working out a number; less about expressing or describing

  • gauge

    implies estimating or judging rather than precisely calculating; less formal

  • determine

    broader in scope — can be non-numerical (e.g. determine the cause); more formal than quantify

Grammar Patterns

quantify + noun phrase

Usage Note

Frequently used in formal, academic, or business writing where precision is important. Unlike the more general verb 'measure', 'quantify' carries the specific idea of expressing something in numbers. The object is almost always an abstract concept (impact, risk, value, cost, benefit, level, extent) rather than a physical object; for concrete objects, 'count' or 'measure' is more natural.

Common Mistakes

The report quantified the problem was getting worse.
The report quantified the severity of the problem.
'quantify' takes a noun phrase as its object, not a that-clause.
Please quantify all the chairs in the room.
Please count all the chairs in the room.
'quantify' is used for abstract concepts or things expressed in numbers; for counting individual physical objects, 'count' is the correct choice.

Word family

Synonym discussion

Sense: verb/1

All four verbs relate to determining a value or amount, but they differ in precision and scope. 'Quantify' is the most specific — it always involves expressing something in numerical terms, and is especially common with abstract nouns (e.g., quantify customer satisfaction, environmental impact). 'Measure' is broader: you can measure physical height with a ruler or measure public opinion with a poll, but 'measure' does not always imply a numerical result (e.g., measure the distance by walking). 'Calculate' focuses on the mathematical process — working out a number from known facts (e.g., calculate the total cost from the receipts). 'Gauge' is more about estimating or judging, often without exact numbers (e.g., gauge the public mood). For a formal report that puts numerical values on abstract ideas, 'quantify' is the most precise choice.

quantify ↗measure ↗calculate ↗gauge ↗

Common collocations

Nouns

  • quantify the effect
  • quantify the benefit
  • quantify the loss
  • quantify the damage
  • quantify the level
  • quantify the degree

Adverbs

  • accurately quantify
  • precisely quantify
  • easily quantify
  • properly quantify
  • objectively quantify

Phrases

  • quantify the extent of
  • quantify the size of
  • attempt to quantify
  • be used to quantify
  • ways to quantify

Prepositions

  • quantify in terms of
  • quantify by

Etymology

LatinFrenchEnglish

The word 'quantify' was formed in the mid-19th century from the Latin elements 'quantus' (meaning 'how much' or 'how great') and the suffix '-fy' (from Latin 'facere', meaning 'to make'). It first appeared in English philosophical and scientific writing, where scholars needed a precise term for the act of expressing abstract qualities as numerical values. The related noun 'quantity' entered English much earlier, in the 14th century, from Old French 'quantite'.