Calm down vs Just breathe that's it vs Relax

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

Calm down

Top 1,000 (very common)

Just breathe that's it

InformalBeyond 10,000 (less common)

Relax

Top 1,000 (very common)A1verb
 Calm downJust breathe that's itRelax
Pronunciation🇬🇧 //kɑːm daʊn//🇺🇸 //kɑm daʊn//🇬🇧 //dʒʌst briːð ðæts ɪt//🇺🇸 //dʒʌst briːð ðæts ɪt//🇬🇧 /["/rɪˈlæks/","/rɪˈlæksɪz/","/rɪˈlækst/","/rɪˈlæksɪŋ/"]/🇺🇸 /["/rɪˈlæks/","/rɪˈlæksɪz/","/rɪˈlækst/","/rɪˈlæksɪŋ/"]/
MeaningTo relax or stop being upset.Take a deep breath and relax, that's all you need to do.To make yourself feel calm and not stressed.
ExampleYou need to calm down before we continue this discussion.When you're feeling overwhelmed, just breathe, that's it.After a long day at work, I like to relax on the couch with a good book.
RegisterNeutralInformalNeutral
How commonTop 1,000 (very common)Beyond 10,000 (less common)Top 1,000 (very common)
CEFR level--A1
Part of speechverb
Collocationscalm down the situation, calm down emotions, calm down quicklyjust breathe, breathe deeply, breathe outcompletely, fully, totally, begin to, try to, learn to, against, into, on, lie back and relax, sit back and relax, relax and enjoy something/​yourself, completely, fully, totally, begin to, try to, learn to, against, into, on, lie back and relax, sit back and relax, relax and enjoy something/​yourself, completely, fully, totally, begin to, try to, learn to, against, into, on, lie back and relax, sit back and relax, relax and enjoy something/​yourself
Antonymsagitate, excite, disturb-stress, tense, worry
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.Learners may say 'just breathe it' instead of 'just breathe'., Confusing it with 'just breathe in', which is more specific., Using it in a formal context where it sounds too casual.'Relax' is sometimes confused with 'release' as if both mean the same thing., Learners may forget to use an object, saying just 'I relax' instead of 'I relax myself'., Some might use 'relax' inappropriately with a negative tone, which can sound confusing.
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 to encourage someone to calm down. Informal and casual; not suitable for formal settings.Use 'relax' when talking about making oneself calm. It's suitable for most contexts, but avoid using it in very formal occasions.

See it in real clips

Calm down
Just breathe that's it
Relax

Frequently asked questions: Calm down vs Just breathe that's it vs Relax

What's the difference between Calm down, Just breathe that's it, and Relax?

Calm down: To relax or stop being upset. Just breathe that's it: Take a deep breath and relax, that's all you need to do. Relax: To make yourself feel calm and not stressed.

Can you show an example of each?

Calm down: You need to calm down before we continue this discussion. Just breathe that's it: When you're feeling overwhelmed, just breathe, that's it. Relax: After a long day at work, I like to relax on the couch with a good book.

Can I use Calm down, Just breathe that's it, and Relax interchangeably?

Not always. Calm down, Just breathe that's it, and 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.

Related comparisons