Phrase guide

pro rata

adv · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /ˌpɹəʊ ˈɹɑːtə/
  • US: Recorded audio is listed in the source snapshot.

1

adv

Meaning 1

In proportion to some factor that can be exactly calculated.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • Tenants who have given 30 days' notice who do not leave on the last day of the month will be charged on a pro rata basis.
  • The workers' overtime is calculated on pro rata basis.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adverb

Meaning 2

in proportion

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: proportionately

Antonyms: none provided

History

Etymology

From Latin prō (“according to”) + ratus (“calculated”).

Across languages

Translations

24 source translations are retained for this English entry.

  • Bulgarian: съразмерно (sǎrazmerno) — in proportion to some factor
  • Chinese Mandarin: 按比例 (àn bǐlì) — in proportion to some factor
  • Czech: poměrně — in proportion to some factor
  • Dutch: naar rato — in proportion to some factor
  • Dutch: pro rata — in proportion to some factor
  • Finnish: suhteessa — in proportion to some factor
  • Finnish: pro rata — in proportion to some factor
  • French: en proportion — in proportion to some factor
  • French: proportionnellement — in proportion to some factor
  • Georgian: პროპორციულად (ṗroṗorciulad) — in proportion to some factor
  • German: pro rata — in proportion to some factor
  • German: verhältnismäßig — in proportion to some factor
  • German: proportional — in proportion to some factor
  • German: anteilig — in proportion to some factor
  • German: anteilsmäßig — in proportion to some factor
  • Japanese: 比例して (hirei shite) — in proportion to some factor
  • Russian: пропорциона́льно (proporcionálʹno) — in proportion to some factor
  • Spanish: a prorrata — in proportion to some factor
  • Spanish: prorrateadamente — in proportion to some factor
  • Spanish: cuoteadamente — in proportion to some factor
  • Spanish: mediante prorrateo — in proportion to some factor
  • Swedish: pro rata — in proportion to some factor
  • Swedish: proportionerligt — in proportion to some factor
  • Swedish: porportionsmässigt — in proportion to some factor