Numbers

Numbers

#

General Rule

Generally write numbers one to nine in full but use numerals from 10 onwards. This is just a general rule, use your common sense for what looks best.

#

Consistency Rule

Don't mix styles. For example:

• Incorrect: 'they were aged nine to 11'

• Correct: 'they were aged 9 to 11'

#

Starting Sentences

Never start a sentence with a numeral. However, please note that this applies to 'flat' numbers only. Dates, currencies, times and percentages can still be written in the usual format and don't need converting into words.

#

Examples

Flat numbers at start of sentence:

• Incorrect: "15 people attended the meeting."

• Correct: "Fifteen people attended the meeting."

Acceptable at start of sentence:

• "£15 was the cost of admission."

• "2023 was a difficult year."

• "3:30pm is the scheduled time."

• "25% of respondents agreed."

#

Best Practices

• Be consistent throughout the document

• Use common sense for readability

• Consider context – technical documents may use more numerals

• Follow the ten rule unless consistency requires otherwise