Numbers in Writing: Spell or Use Numerals?

September 5, 2025 · 5 min read · style, reference, editing

General: Spell one–nine; use numerals for 10+.

Exceptions (use numerals):

Dates, times, percentages, money.
Measurements and scores.
Exact ages.

Consistency wins: Pick a style (APA/MLA/Chicago), then stick to it across the piece. Use the Text Formatter to fix casing and stray spaces after edits.