Numbers, measurements and units: Difference between revisions
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* per cent should be spelt out, not % | * per cent should be spelt out, not % | ||
[[category:writers' guide]] | [[category:BritGeoWiki writers' guide]] |
Revision as of 15:41, 17 June 2014
See Notes for Authors p. 22 for detailed guidance.
Brief guidelines as below:
use numerals
- whenever a number is followed by a unit symbol
(for example kg, m)
- for references to illustrations
- for dates, page numbers, percentages and expressions of
time
- where several numbers are used in succession, some less
and some more than ten, use numerals throughout
- use decimals and never fractions
use words
- for numbers from one to ten; numerals for larger numbers
- in whole numbers containing several zeros, either substitute
a word for part of the number (e.g. 16 million instead of 16 000 000)
- do not begin a sentence with a numeral
spaces and markers
- use a full point for the decimal marker e.g. 16.6 kg
- numbers with up to four digits or fewer on either side of the
decimal marker are set without spaces or commas: 616, 1684, 0.8333
- numbers with more than four digits are divided by a fixed
space, not a comma, every three digits from the decimal marker: 25 000, 1 584 000, 0.616 42
units
- millions: use m and decimals: 1 m, 1.5 m, 20 m
- billions: use bn and decimals: 1 bn, 1.5 bn, 20 bn
- per cent should be spelt out, not %