How to Say "chill out" in Spanish
The Spanish word for “chill out” is “relájate” — A2 level. This is a very common word in everyday Spanish.

Examples
Estás muy estresado, relájate un poco.
You are very stressed, relax a little bit.
¡Relájate! No hay prisa para terminar el trabajo.
Take it easy! There's no rush to finish the work.
Siéntate en el sofá y relájate. Yo me encargo de la cena.
Sit on the couch and relax. I'll take care of dinner.
A Command Word
This word is an affirmative command (telling someone what to do) directed at 'tú' (you, informal). The base command is 'relaja', and the 'te' is attached to show the action is done to oneself.
Reflexive Pronoun Attachment
In affirmative commands like this, the little word 'te' (meaning 'yourself') must be glued to the end of the verb. In other verb forms, like 'I relax,' the 'me' comes before the verb ('me relajo').
Misplaced Pronoun
Mistake: “Te relaja.”
Correction: Relájate.
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.