Cool MateCalm down vs Chill out
When to use each in English, with meaning, register, and examples.
Calm down
Top 1,000 (very common)
Chill out
InformalTop 2,000 (common)
Most formal: Calm downMost common: Calm down
| Calm down | Chill out | |
|---|---|---|
| Pronunciation | 🇬🇧 //kɑːm daʊn//🇺🇸 //kɑm daʊn// | 🇬🇧 //tʃɪl aʊt//🇺🇸 //tʃɪl aʊt// |
| Meaning | To relax or stop being upset. | Calm down and relax. |
| Example | You need to calm down before we continue this discussion. | You need to chill out and stop worrying so much about the exam. |
| Register | Neutral | Informal |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| Collocations | calm down the situation, calm down emotions, calm down quickly | chill out time, chill out period, chill out zone |
| Antonyms | agitate, 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. | 'Chill out' is often confused with 'cool off', but the meanings can slightly differ., Some learners use 'chill out' in a serious context, which may sound inappropriate., Using 'chill out' as a command can come off as rude. |
| Usage notes | Use 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. | Use 'chill out' in casual conversations to suggest someone should relax. Avoid in formal contexts. |
See it in real clips
Frequently asked questions: Calm down vs Chill out
What's the difference between Calm down and Chill out?
Calm down: To relax or stop being upset. Chill out: Calm down and relax.
Which is more formal: Calm down and Chill out?
Calm down is the most formal of these.
Which is more common: Calm down and Chill out?
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. Chill out: You need to chill out and stop worrying so much about the exam.
Can I use Calm down and Chill out interchangeably?
Not always. Calm down and Chill out 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.