NG Style Manual > - N - >
See also MEASURES
General: Spell out whole numberszero through nine and the expressions a hundred, a thousand, a million, a billion; otherwise use figures: 10, 20, 35, 110, 6,000, 100,000, 340,000.
In digitalheadlines, use numerals for all numbers except in casual uses: "thousands" instead of "1,000s." A numeral may be used at the beginning of a headline.
The words million and billion are preferably spelled out: three million, 20 billion, 33 million, 1,500 billion.
Note that the term billion differs in the U.S. and British systems.
Use figures for all numbers that contain decimals: a 2.5-billion-dollar deficit (preferable to 2½ billion).
Spell out a number beginning a sentence. If this creates an awkward sentence, rephrase so that the sentence does not begin with a number. Follow the general rules above for numbers throughout a sentence or paragraph; it's fine to use figures for some and spelled out for others:
Nineteen ninety-six was the year the thunder came.
the five girls and 12 boys
Of the 25 staff writers, fewer than nine may be in the office, while the other 16 or so are in the field.
During the past five years 12 new 10-story office buildings have gone up between old structures of three or four stories.
He stood 60 to 100 feet away.
Do not divide a figure at the end of a line. Recast the sentence if necessary.
|1.||Abbreviations: Use a figure when an abbreviation or a symbol is used for the unit of measurement:|
| || ||30°C (86°F)|
10° 30' N
|2.||Ages of Persons, Animals, and Things: Spell out ages of persons, animals, and things from one through nine. Use figures for numbers 10 and larger and for fractions:|
| || ||a six-month-old child|
He was six months old
flowers nine days old
He looked sixtyish
|in his 30s|
twentysomething, also 20-something
|4.||Commas With Figures: In cardinal numbers use a comma in a figure of four digits or more. In a fraction, date, or temperature, use a comma in a figure that contains five digits or more:|
| || ||1,750 nails|
|5.||Compound Modifiers: Before a noun, an adjective that contains a number is hyphenated when the unit of measurement is expressed with the number:|
| || ||a 4,000-year-old mummy|
a mummy 4,000 years old
|4,000 and some years ago|
an eight-year-old building
|6.||Congress: Spell out through Ninth, then use figures:|
| || ||First Congress||14th Congress|
|7.||Constitutional Amendments: Spell out through Ninth.|
|8.||Dates: See main entry Dates.|
|9.||Decimals: Use figures for all numbers that contain decimals: 3.4 inches of rain, 22.25 inches of snow, a 12.5-billion-dollar deficit. If the amount is less than one, the unit of measurement is singular: .33 inch (not inches) a day. If the figure is a one-digit decimal, use a zero before the point: 0.3 inch a day.|
|10.||Dimensions: Generally express numbers one through nine in words rather than figures, which is more informal. The word by is usually preferable but, again, the symbol x may be used in a more informal usage.|
| || ||a three-by-five card or a three-by-five |
a four-by-six print, a 4 x 6 print
a four-by-four or 4WD or FWD or 4x4 are all acceptable for a four-wheel-drive motor vehicle
|11.||Dynasties: Use Arabic numerals for Egyptian dynasties:|
|12.||Emperors, Kings, and Popes: Use Roman numerals:|
| || ||Emperor Charles V|
Queen Elizabeth II
|King George VI|
Pope Benedict XVI
|13.||Figures of Speech: Generally spell out; capitalization varies:|
| || ||feel like a million dollars|
thanks a million
|14.||Fractions: State fractions in text in the simplest possible way, usually in words or decimals. Generally spell out half, third, quarter:|
| || ||a half or one-half; two and a half|
two and a half pounds, two-and-a-half-pound book
two and a half years ago
two and a half million acres, 2.5-million-acre reserve
|Spell out simple fractions under 10 unless used in pairs or in dimensions, or unless they are cumbersome:|
| || ||even-eighths, 4¾, 1/7000 (do not use th) of a pound, or 3½ by 4½ feet, 11½|
a hundredth or one-hundredth
39 millionths of an inch
|Do not use commas in any part of a fraction with fewer than five digits.|
|15.||Governments and Governing Bodies: Spell out First through Ninth:|
| || ||Second Continental Congress|
15th Party Congress
|16.||Highways, Roads, and Streets: Designate highways and roads with Arabic numerals:|
| || ||Interstate 609, I-60|
U.S. Route 29, U.S. 29
|Maryland Route 579|
|Numbered streets through Ninthare spelled out:|
| || ||1400 Second Avenue|
1403 35th Street
|17.||Hyphens: A compound modifier containing a number is hyphenated before a noun when it contains the unit of measurement. A hyphen means up to and including when used in a range of numbers:|
| || ||an eight-foot pole|
a 20-billion-dollar debt
an 8½-year-old boy
a 700-bottle shipment
a four-foot-nine-inch ladder
three- to five-day courses
|a pole eight feet long|
20 billion dollars of debt
8½ years old
|When measurements before a noun consist of different elements, hyphenate within the elements and separate them with a comma: 19-inch, three-pound fish.|
|18.||Kings: See section 12 of this entry.|
|19.||Latitude and Longitude (latitude is always given first):|
| || ||latitude 72° 54' N, longitude 165° 53' W|
72° 54' N, 165° 53' W
90th meridian of east longitude
81st parallel of north latitude
21° north (when spelled out); 21° N
|21.||Mathematical Expressions: Spell out one through nine but generally keep items consistent:|
| || ||multiplied by four|
x squared (note italic x)
|four to one||11 to 1|
|22.||Military Units: Spell out and capitalize military units through Ninth:|
| || ||Second Battalion|
|First Marine Division|
474th Fighter Wing
|Use Roman numerals for corps: III Corps.|
|23.||Money: Spell out one through nineand the expressions a hundred, a thousand, a million, a billion; otherwise use figures: nine dollars, $20, $35, a hundred dollars, $110, $6,000, $340,000.|
If a number is spelled out, also spell out dollar; if a figure is used, then use the dollar symbol: nine dollars, a bill for three million dollars, $20 billion, a bill for $33 million, $13 million dam.
The words million and billion are preferably spelled out: $800 million, more than $30 billion, one million dollars.
Note that the term billion differs in the U.S. and British systems.
Use figures for all numbers that contain decimals: a $2.5 billion deficit.
Hyphenate compound modifiers that include spelled-out words: a two-dollar tie, but a $45 shirt.
Use an apostrophe in such expressions as 20 dollars' worth, a million dollars' worth.
Small sums: eight cents, 15 cents; not 15¢ or $0.15.
Dollars and cents: $2.98, $6.25, $625.40.
In general, spell out units of foreign currency and do not italicize them: two pounds 60 pence; 53 pesos, 74 euros. Give the nearest rounded U.S. equivalent at least once within parentheses: It cost a hundred kroner ($20), four francs (80 U.S. cents). When conversions are given within parentheses for sums of money employing the same unit of currency, generally follow these examples: In Canada the current quotation was $2.69 (U.S. $2.47) a box; the New Zealand dollar is worth around 55 U.S. cents; a 325-million-dollar (U.S.) resort development.
In British currency the pound (£) symbol may be used as one would use the dollar symbol. Note that the term billion differs in the U.S. and British systems.
|24.||Odd: Avoid expressions such as 25-odd. For odds see section 31 under this entry.|
|25.||Olympics: Use Roman numerals: XXIV Olympiad, XXIV Olympic Games.|
|26.||Ordinals: Spell out first through ninth; for ordinals greater than ninth use Arabic numerals with st, nd, rd, and th: 41st, 42nd, 43rd, 44th. Do not hyphenate ordinals with comparatives or superlatives: second largest producer, fourth most populous city, but first-grade potatoes, third-ranked city.|
|27.||Percentages: Use figures, except for one percent. Do not hyphenate percentages:|
| || ||a 60 percent increase||4 percent spoiled|
|28.||Plurals: For plurals of figures add s:|
| || ||in his 30s||Type 2s||several C-54s |
|Plurals of spelled-out numbers are formed regularly:|
| || ||at sixes and sevens||hundreds of people|
|29.||Political Divisions: Spell out ordinals First through Ninth:|
| || ||Fifth Ward|
Second Congressional District
|30.||Popes: See section 12 of this entry.|
|31.||Proportions, Odds, and Ratios: Generally spell out one through nine and use figures thereafter: six parts steam, 11 parts sweat; six-to-four margin; one-in-20 chance; 50-50 chance. Write: two to one against; 42 to 36 in favor; not 2-1 against or 42-36 in favor. Generally spell out figures of speech such as fifty-fifty, unless the context makes numerals appropriate: Others thought he had a one-in-20 chance of winning, though he considered his odds were 50-50.|
|32.||Roman Numerals: Use for rulers, popes, Egyptian dynasties, Olympiads, personal names, ships, and a few other special cases. For formation, see Number Table in Webster's.|
|33.||Scientific notations are written as follows: |
4 x 1022
x squared (note italic x)
|34.||Some: Use only with a round number. Use a hyphen when this suffix is used attributively: 80-some years.|
|35.||Streets: See section 16 of this entry.|
|36.||Temperatures: Generally expressed in figures. Use comma only with five digits or more.|
| || ||minus 102°C|
|102° below zero Celsius|
in the 90s
|37.||Time of Day: Use figures before a.m. and p.m. Spell out with o'clock:|
| || ||7 p.m.|
the 7 a.m. plane
a four o'clock snack
4:30 in the morning
noon (not 12 noon)
midnight (not 12 midnight)
11 in the morning
|38.||Year: Use a comma when figure consists of five or more digits:|
| || ||1500 B.C.|
|by the year 10,000|
| || ||figure eight|
number 2 fuel oil
bull number 5
|world's number one producer|
number one hit
continue with stage two
class one soil
|Use proper name if known:|
| || ||Number 4 oil well|
Well No. 4
|lock Number 7|
Train Number 43