A guide to writing numbers and currencies.
Numbers 0-9 should be written as words.
Numbers 10+ should be written using numbers.
Use numerals instead of words for:
- business days
- age
- school years
- dates and business days
- street addresses
- tips articles
- instructions
- snappy copy
- mobile apps where space is limited.
Avoid starting a sentence or heading with a number unless it’s a rate, dollar amount, points or tips/reasons/steps, etc.
Numerals 1,000+ use commas
Thousands, millions and billions can be expressed using k, m, b – and should always be used as such in headings, disclaimers and T&Cs.
BSB numbers include a dash after the first three digits
Telephone numbers should include spaces.
Number ranges use an en dash without spaces on either side.
Percentages should be %, not ‘percent’
Number rankings can either be:
- ‘first’, ‘second’, etc.
- #1, #2, #3
- no.1, no.2
No currency symbols on abbreviations of foreign currencies, e.g. AUD, USD, NZD, EUR, GB, etc.
Currencies are lower case when using the word.