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How to Say Thank You in Korean — 6 Ways, Casual to Formal

감사합니다 is the safe thank you in Korean, 고맙습니다 the warmer one. Which to use when, how to reply, and how to say sorry and I love you.

Updated 2026-08-19 · 5 min read

How to Say Thank You in Korean — 6 Ways, Casual to Formal

The default: 감사합니다

If you learn one way to say thank you in Korean, learn 감사합니다. It pairs the Sino-Korean word 감사 (gratitude) with a formal ending, and it is appropriate everywhere: taking change from a cashier, closing a work email, thanking a stranger. Note the pronunciation: it sounds like gam-sa-ham-ni-da, because the ㅂ of 합 assimilates to an m before the following ㄴ.

To intensify it, add 정말 ("really") or 진심으로 ("sincerely"): 정말 감사합니다. There is also a softer 감사해요, but it is less formal than 감사합니다 and is better avoided with someone clearly senior to you.

감사합니다 vs 고맙습니다: what actually differs

The two mean the same thing and sit at essentially the same politeness level. The difference is etymology: 감사합니다 comes from Sino-Korean vocabulary, while 고맙습니다 is native Korean. Many speakers feel 고맙습니다 sounds slightly warmer and more personal, but neither is ever rude.

Ways to say thank you, by formality
KoreanRomanizationWhen to use it
감사합니다gamsahamnidaThe default — shops, work, strangers
고맙습니다gomapseumnidaEqually polite, slightly warmer in feel
고마워요gomawoyoSoftly polite — peers and people you know
고마워gomawoCasual — close friends and people younger than you
정말 감사합니다jeongmal gamsahamnidaWhen someone genuinely went out of their way
감사드립니다gamsadeurimnidaMost formal — official emails, speeches, notices
A person waving both hands to modestly deflect thanks
Replies to thanks stay short in Korean — a long answer sounds unnatural.

How to reply when someone thanks you

Korean has several equivalents of "you're welcome", chosen by situation. The most common is 아니에요 (anieyo — literally "it's nothing"), the polite version is 별말씀을요 (byeolmalsseumeuryo), and a light one is 괜찮아요 (gwaenchanayo). Korean replies here stay short — a long response sounds unnatural.

Responses to thank you
KoreanRomanizationFeel
아니에요anieyoThe everyday default — "it's nothing"
별말씀을요byeolmalsseumeuryoPolite — used with someone senior
괜찮아요gwaenchanayoLight and easy — 괜찮습니다 for a formal register
천만에요cheonmaneyoTextbook phrase — rare in real conversation

One caveat: 천만에요 appears in many textbooks but is close to extinct in daily speech. Koreans will understand it, though it lands as slightly old-fashioned. 아니에요 is the safer habit to build.

Other feelings: how to say sorry and I love you in Korean

The two phrases learners look up right after thank you are sorry and I love you. Apologies split into 죄송합니다 (formal) and 미안해요 (friendly); affection is 사랑해요 in the polite form and 사랑해 in the casual one. The formality logic is identical to the thank-you set.

Apologies and affection
KoreanRomanizationMeaning and use
죄송합니다joesonghamnidaFormal "I'm sorry" — work, strangers
미안해요 / 미안해mianhaeyo / mianhaeFriendly apology — polite / casual
사랑해요 / 사랑해saranghaeyo / saranghae"I love you" — polite / casual
실례합니다sillyehamnida"Excuse me" — to get someone's attention politely

사랑해 is the casual form, kept for partners and family. In K-pop lyrics and fan messages you will mostly see 사랑해요: the polite ending carries affection and respect at the same time, which is exactly the tone fans want.

Check yourself

Someone thanks you. Which reply do Koreans actually use most?

Practicing until it comes out automatically

With courtesy phrases, the gap between knowing the meaning and producing it in the half-second the moment allows is what actually holds beginners back. Rehearsing them tied to specific scenes — paying at a counter, someone holding a door, receiving help — out loud is what closes that gap.

When the choice feels hard, 감사합니다 alone is enough: being too polite is never the problem in Korean. On the receiving side, 아니에요 covers almost every situation you will meet.

Frequently asked questions

How do you say thank you in Korean?

Say 감사합니다, pronounced gam-sa-ham-ni-da. It is appropriate in nearly every situation. With close friends use the casual 고마워 (gomawo), and 고마워요 (gomawoyo) as a softer polite option.

Should I use 감사합니다 or 고맙습니다?

Either is fine — both are polite. 감사합니다 is Sino-Korean and 고맙습니다 is native Korean, which many speakers experience as slightly warmer. In official or business settings, 감사합니다 is somewhat more common.

What do Koreans say instead of "you're welcome"?

The everyday answer is 아니에요 ("it's nothing"). Use 별말씀을요 when replying to someone senior, or 괜찮아요 for a light response. The textbook phrase 천만에요 is rarely used in real conversation.

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