Chicago recommends using words, not numerals, for numbers lower than 100. For example, you would write “ninety-five,” not “95.” But numerals should still be used when you're referring to a specific measurement (e.g., “15 cm”) and when using decimals (e.g., “1.5”).
When writing measurements for an area, the standard convention is to use length by width. This means you'll typically state the longer dimension first, followed by the shorter one. For example, if a room measures 12 feet long and 10 feet wide, you would write it as 12' x 10'.
The following advice is offered: Avoid unnecessarily large numbers or trailing zeroes – e.g. write 4 m rather than 4000 mm. For clothes sizes, prefer 95 cm to 950 mm. Use whole numbers and avoid decimal points if possible – e.g. write 25 mm rather than 2.5 cm.
Letters in ordinals (-st, -nd, -rd) are not superscripts. Add an “s” to a numeral, or “es” or “s” to the written out form.
Spell out whole/round numbers one through one hundred. For example, “thirty-two children from eleven families were packed into three vans”. Use numerals for other numbers, unless the number starts a sentence. Series of numbers: All numbers must be numeral.
Here are the basic guidelines for Chicago Style: Include your name, your instructor's name, the course, and the date in the upper left-hand corner of the first page. Double-space the text. 12 point font, Times New Roman is recommended. Page numbers in the header of the first page (not title page, first page of paper)
Spell out numbers one through one hundred (Chicago's general rule). Spell out multiples of one through one hundred used in combination with hundred, thousand, or hundred thousand.
Spell out numbers one through one hundred (Chicago's general rule). Spell out multiples of one through one hundred used in combination with hundred, thousand, or hundred thousand.
Chicago and Turabian: Chicago recommends using symbols for US dollars and other major currencies but recommends using the three-letter code for less recognizable currencies. Chicago also suggests placing the symbol or code before the numerical value.
In Chicago's default style for numbers, whole numbers under 101 are usually spelled out, as in three or ninety-three. Chicago's alternative rule spells out numbers up to and including nine.