算了 (suàn le) is an interjection expressing resignation, giving up on something, or deciding not to pursue a matter further. Literally, 算 means 'to calculate' or 'to consider', and 了 marks a change of state — together, they convey the sense of 'let’s stop considering this' or 'it’s not worth the effort anymore'. It often carries mild disappointment, frustration, or pragmatic acceptance.

This phrase is commonly used in spoken Chinese to soften refusal, end an argument, abandon a plan, or dismiss a minor grievance. It’s informal and conversational, frequently appearing at the beginning or end of a sentence. While it can sound slightly abrupt, tone and context determine whether it comes across as weary, generous, or even playful. It’s rarely used in formal writing or official speech, and never with honorifics or in highly deferential situations.