How to Say "This Is Why" in Spanish

por eso

/poɾ ˈeso/

The English phrase "this is why" is translated into Spanish as por eso.

Por eso is used to introduce the reason or explanation for something that was just mentioned.

What does it mean word for word?

The phrase is composed of the preposition por (for/by) and the demonstrative pronoun eso (that), meaning literally "for that" or "because of that".

While English distinguishes between "this is why" and "that is why", the Spanish por eso is used for both.

The phrase Es por eso que is used more commonly in Latin American Spanish.

If you want to be more explicit or formal, you can use the phrase por esa razón to mean "for that reason".

/poɾ ˈeso/

In spoken Spanish, por eso is frequently used as a standalone response to agree with someone's logic, functioning like the English phrase 'exactly' or 'that's why'.
The word por is a linguistic doublet of the English preposition 'pro'. Both originate from the Latin prō, but while one was borrowed directly into English, the other evolved naturally through Old Spanish.

Por eso lo odio.
This is why I hate him.
This sentence shows how to use por eso to express hatred.
Tatoeba #1670259 by marcelostockle, translation #56195 by CM
Por eso se constipó Yoshio.
This is why Yoshio has caught a cold.
This sentence shows how to use por eso to explain a medical condition.
Tatoeba #2310821 by Shishir, translation #43204 by orcrist
Por eso no me gustan los gatos.
This is why I dislike cats.
This sentence shows how to use por eso to express a dislike for cats.
Tatoeba #730637 by Shishir, translation #62320 by CK
Carlos trabajó arduamente durante meses, por eso pudo lograr el éxito en su empresa.
Carlos worked hard for months, which is why he was able to achieve success in his company.
La inversión en educación es fundamental. Es por eso que debemos priorizarla.
Investment in education is fundamental. That's why we must prioritize it.
Desafortunadamente, las condiciones climáticas han empeorado. Por esta razón, el evento ha sido cancelado.
Unfortunately, the weather conditions have worsened. For this reason, the event has been canceled.
Me quedé despierto hasta tarde. Por eso es que estoy tan cansado hoy.
I stayed up late. That's why I'm so tired today.
Hemos tomado medidas para mejorar el proceso de producción. Es por eso que nuestra calidad ha aumentado.
We have taken measures to improve the production process. That's why our quality has increased.
6 more sentences on Tatoeba

Sofía and Javier are discussing why their car is broken.

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