Spell Out Numbers Guide: When to Write Numbers as Words
Rules for writing numbers as words: AP style, Chicago Manual, and APA guidelines. When to spell out vs use numerals in journalism, books, and docs.
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Tags: text, writing, style
Spell Out Numbers: When to Use Words vs Numerals Should you write "3 things" or "three things"? "The 9 steps" or "the nine steps"? Style guides disagree, but they all agree that consistency within a document matters more than which rule you follow. This guide explains the major style conventions, when to deviate from them, and how to decide which rule to apply in ambiguous cases. -----|-----|-----|---------| | 1–9 | Spell | Spell | Spell | | 10–100 | Numeral | Numeral | Spell | | 101+ | Numeral | Numeral | Numeral | | Percentages | Numeral (7%) | Numeral (7%) | Numeral (7%) | | Ages | Numeral | Numeral | Spell if low | --- Universal Rules (All Styles Agree) These rules override the basic number rules in every major style guide: Never Start a Sentence with a Numeral Be Consistent in a…
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