Calm down vs Hey relax

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

Calm down

Top 1,000 (very common)

Hey relax

InformalTop 2,000 (common)
Most formal: Calm downMost common: Calm down
 Calm downHey relax
Pronunciation🇬🇧 //kɑːm daʊn//🇺🇸 //kɑm daʊn//🇬🇧 //heɪ rɪˈlæks//🇺🇸 //heɪ rɪˈlæks//
MeaningTo relax or stop being upset.A way to tell someone to calm down or take it easy.
ExampleYou need to calm down before we continue this discussion.After a long day, I told my friend, 'Hey, relax, we have all night to finish this project.'
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 2,000 (common)
Collocationscalm down the situation, calm down emotions, calm down quicklyHey, take it easy, chill out, calm down, no worries, just breathe
Antonymsagitate, excite, disturb-
Common mistakes'Calm down' can be used for things instead of people, which is incorrect., Confusing 'calm down' with 'cool off', which has a slightly different meaning., Using 'calm down' too aggressively can make someone feel worse.Using it in serious situations where calmness is not appropriate., Saying it too aggressively can seem rude., Adding unnecessary words that make it sound less friendly.
Usage notesUse in situations where someone is anxious or angry. It’s neutral in tone, appropriate for friends, family, or colleagues, but can seem dismissive if not delivered carefully.Used in casual conversations among friends. May not be suitable in formal settings. Often used to ease tension.

See it in real clips

Calm down
Hey relax

Frequently asked questions: Calm down vs Hey relax

What's the difference between Calm down and Hey relax?

Calm down: To relax or stop being upset. Hey relax: A way to tell someone to calm down or take it easy.

Which is more formal: Calm down and Hey relax?

Calm down is the most formal of these.

Which is more common: Calm down and Hey relax?

Calm down is the most common in everyday English.

Can you show an example of each?

Calm down: You need to calm down before we continue this discussion. Hey relax: After a long day, I told my friend, 'Hey, relax, we have all night to finish this project.'

Can I use Calm down and Hey relax interchangeably?

Not always. Calm down and Hey relax 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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