That's perfect vs That's what we need

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

That's perfect

Beyond 10,000 (less common)

That's what we need

Top 2,000 (common)
Most common: That's what we need
 That's perfectThat's what we need
Pronunciation🇬🇧 //ðæts ˈpɜːfɪkt//🇺🇸 //ðæts ˈpɜrfɪkt//🇬🇧 //ðæts wɒt wiː niːd//🇺🇸 //ðæts wɑt wi nid//
MeaningIt is exactly what I wanted.This is what we want.
ExampleYour presentation was amazing, that's perfect!When we discussed our goals, Jane said, 'We need a new plan,' and I replied, 'That's what we need.'
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Top 2,000 (common)
Collocationsthat's perfect timing, that's perfect for me, that's perfect exampleThat's exactly what we need, That's not what we need, That's exactly what we wanted, That's certainly what we need
Antonymsthat's awful, that's unacceptable-
Common mistakesUsing it sarcastically without clear context., Mispronouncing the phrase., Confusing with 'that's good' in intensity.Using it in overly formal settings., Misplacing intonation, which can change meaning., Saying it when not fully agreeing with the statement.
Usage notesUse when you agree or are pleased with something. Suitable in most contexts; avoid in very formal settings.This phrase is often used to emphasize agreement or affirm a suggestion. It fits well in informal and neutral contexts but may sound too casual in very formal discussions.

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That's perfect
That's what we need

Frequently asked questions: That's perfect vs That's what we need

What's the difference between That's perfect and That's what we need?

That's perfect: It is exactly what I wanted. That's what we need: This is what we want.

Which is more common: That's perfect and That's what we need?

That's what we need is the most common in everyday English.

Can you show an example of each?

That's perfect: Your presentation was amazing, that's perfect! That's what we need: When we discussed our goals, Jane said, 'We need a new plan,' and I replied, 'That's what we need.'

Can I use That's perfect and That's what we need interchangeably?

Not always. That's perfect and That's what we need 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.