Do You Spell Out Ages In Chicago Style

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Age Ain't Nothing But a Number (According to Chicago Style)

So, you're writing a paper, a novel, or maybe just a really long grocery list, and you're staring at a number. It's a person's age, and you're wondering, "Do I spell it out or do I just slap that number down there like it's nobody's business?" Fear not, young grasshopper (or old grasshopper, or whatever age grasshopper you are), because we're about to dive into the wonderful world of Chicago Style age rules.

The Golden Rule(s) of Age

Generally speaking, Chicago Style prefers that you spell out numbers from zero to one hundred. So, if your protagonist is a sprightly 25-year-old, you'd write "twenty-five." But hold your horses! There are exceptions to every rule, and Chicago Style is no exception to the exception rule.

  • Big Numbers, Big Deal: If you're dealing with numbers over one hundred, you can switch to numerals. For instance, if your character is a seasoned 123-year-old vampire, feel free to write "123."
  • Age is Just a Number (Sometimes): If you're talking about a specific age within a larger context, like statistics or a list, you can use numerals. For example, "Of the 100 participants, 37 were under the age of 30."

Age is Relative (According to Chicago Style)

Now, let's talk about those pesky decades. Chicago Style prefers "thirties" and "forties" over "30s" and "40s." But if you're feeling rebellious, go ahead and use those apostrophes. Just don't expect a gold star from your editor.

When in Doubt, Be Consistent

The most important thing is to be consistent throughout your writing. If you start spelling out ages, stick with it. If you decide to use numerals, keep on truckin'. Your readers will thank you for not making their brains work overtime.

How to Conquer Age in Chicago Style

  • How to spell out ages under 100: Simply write the number as a word.
  • How to handle ages over 100: Use numerals.
  • How to write about decades: Prefer "thirties" and "forties" but "30s" and "40s" are acceptable.
  • How to maintain consistency: Choose a style and stick with it.
  • How to avoid ageism: Remember, age is just a number, and people come in all shapes, sizes, and experiences. Treat everyone with respect, regardless of their age.
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