Numbers

• ‍Use words for simple numerals from one to ten inclusive.
• ‍Never start a sentence with a figure, write the number in words instead.
• Always use numbers with units of measurement, even those less than 10.
• In all other cases, use figures for numerals from 10 upwards.
• ‍For numerals over 999 – insert a comma for clarity: 9,000.
• Spell out common fractions like one-half.
• ‍Spell out first to ninth. After that use 10th, 11th and so on.
• ‍In tables, use numerals throughout.
• Where practicable, write out million, billion and trillion, in full.
• Subsequent mentions can use abbreviation without a space between number and suffix. For example, £123m.
• British English now widely uses the American English value for 1 billion ie a thousand million 1,000,000,000.‍
• Note: British English used to value 1 billion as a million million ie 1,000,000,000,000. That is now widely referred to as a trillion.