Use numerals (1, 2, 3, and so forth) for all numbers up to a billion when representing specific statistics or examples, even if it’s at the beginning of the line or sentence.

Spell out casual expressions (example: You’re one in a million).

Spell out ordinal numbers (“first”) up to and including “ninth” when indicating sequence or location (except in geographic, military, or political names). Use figures starting with 10 (example: He was second in the match, but 12 in the tournament.).

Use numbers for:

  • Percentages (12%, 0.4%)
  • Groups (1 of 10 groups)
  • Ratios (ratio of 2 to 1)
  • Decades (the 1980s, ’80s)
  • Age for people and animals, but not things (example: An 8-year-old girl; A girl, 2 months old; A five-year-old tax law).

Different languages format numbers differently. We call out some of the differences. To make sure we format numbers appropriately, work with regional content designers.


We gathered insights from 6,058 individuals in 20 mid-market cities in the UK.
That one photo generated thousands of comments.
First, enter your email address.
9th U.S. Circuit Court of Appeals