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Daily · Spanish

How to say “i don't know” in Spanish

Practice this phrase

i don't know

Spanish · Español

safe

Translation

no lo sé

Romanization

no lo sé

Pronunciation

noh loh seh

When to use it

Use this in everyday conversation. These phrases are generally safe for work, travel, and casual interactions. In Spanish, tone and relationship matter; when unsure, choose a polite version or soften your delivery.

Example

no lo sé — a natural sentence for ordinary conversation for "i don't know".

Same situation

Use these with i don't know in Spanish

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FAQ

Common questions

How do you say "i don't know" in Spanish?+

You say "no lo sé" in Spanish. The romanized form is "no lo sé", and a simple pronunciation cue is "noh loh seh".

Is this phrase formal or casual?+

This entry is marked as safe. The usage note explains when the phrase is appropriate and when you should soften it.

How do you pronounce it?+

Use "noh loh seh" as a learner-friendly pronunciation cue. The romanization is "no lo sé".

When should I use it?+

Use this in everyday conversation. These phrases are generally safe for work, travel, and casual interactions. In Spanish, tone and relationship matter; when unsure, choose a polite version or soften your delivery.