Table of contents

  1. Writing numbers
  2. Number rounding
  3. Generalised numbers
  4. Millions and billions
  5. Page numbers
  6. Plus and minus
  7. Fractions
  8. Percentages
  9. Dates
  10. Time
  11. Ages
  12. Money
  13. Measurements and units
  14. Telephone numbers
  15. Superscript and subscript

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Superscript and subscript

Do not use superscript and subscript formatting for numbers within text (except in equations properly formatted as such).

For numbers used as footnote markers, write these in full size, preceded by the word “note” and placed in square brackets:

This may be affected by external factors [note 1].

Write numbers in chemical elements at full size, for example:

CO2