About vs That's about that much

When to use each in English, with meaning, register, and examples.

About

Top 1,000 (very common)A1preposition

That's about that much

InformalBeyond 10,000 (less common)
Most formal: AboutMost common: About
 AboutThat's about that much
Pronunciation🇬🇧 /["/əˈbaʊt/"]/🇺🇸 /["/əˈbaʊt/"]/🇬🇧 //ðæts əˈbaʊt ðæt mʌtʃ//🇺🇸 //ðæts əˈbaʊt ðæt mʌtʃ//
MeaningConcerning or in relation to something.It refers to a specific amount or level.
ExampleI read a book about nature.I need that much money to buy the new phone.
RegisterNeutralInformal
How commonTop 1,000 (very common)Beyond 10,000 (less common)
CEFR levelA1-
Part of speechpreposition
Collocationstalk about, think about, worry about, know about, care aboutthat much money, that much time, that much effort
Antonymsaway, beyond-
Common mistakesConfusing 'about' with 'around' in certain contexts., Using 'about' when 'regarding' would be more formal., Using 'about' in place of 'approximately' for numerical values.Confused with 'That's about that many' when talking about countable nouns., Used in overly formal contexts where a simpler expression would suffice.
Usage notesUse 'about' when discussing topics or subjects. It's versatile in both spoken and written English, but informal expressions may avoid it in academic texts.Use this phrase to indicate a particular quantity or extent, usually in casual conversation. It may not be suitable for formal settings.

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That's about that much

Frequently asked questions: About vs That's about that much

What's the difference between About and That's about that much?

About: Concerning or in relation to something. That's about that much: It refers to a specific amount or level.

Which is more formal: About and That's about that much?

About is the most formal of these.

Which is more common: About and That's about that much?

About is the most common in everyday English.

Can you show an example of each?

About: I read a book about nature. That's about that much: I need that much money to buy the new phone.

Can I use About and That's about that much interchangeably?

Not always. About and That's about that much are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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