That's fine vs That's okay

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

That's fine

Top 2,000 (common)

That's okay

Top 2,000 (common)
 That's fineThat's okay
Pronunciation🇬🇧 //ðæts faɪn//🇺🇸 //ðæts faɪn//🇬🇧 //ðæts əˈkeɪ//🇺🇸 //ðæts oʊˈkeɪ//
MeaningIt's okay or acceptable.It's all right.
ExampleYou can borrow my book; that's fine with me.I forgot to call you, but that's okay.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
Collocationsthat's fine with me, that's fine by you, that's fine to saythat's okay with me, that's okay to do, that's okay if you can't
Antonyms-that's not okay, absolutely not
Common mistakesUsing 'that's fine' in formal writing., Confusing 'that's fine' with 'that's not fine' and using it negatively., Overusing 'that's fine' instead of finding more specific responses.Using 'that's okay' in very formal situations, Confusing with 'that's fine' which can sound more dismissive, Mispronouncing or slurring words in quick speech
Usage notesUse 'That's fine' in casual conversations to express agreement or acceptance. Avoid in formal situations.Used to reassure someone or indicate acceptance. Appropriate in most informal and neutral contexts, but can be overly casual in formal situations.

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That's fine
That's okay

Frequently asked questions: That's fine vs That's okay

What's the difference between That's fine and That's okay?

That's fine: It's okay or acceptable. That's okay: It's all right.

Can you show an example of each?

That's fine: You can borrow my book; that's fine with me. That's okay: I forgot to call you, but that's okay.

Can I use That's fine and That's okay interchangeably?

Not always. That's fine and That's okay 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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