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.

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.
| Korean | Romanization | When to use it |
|---|---|---|
| 감사합니다 | gamsahamnida | The default — shops, work, strangers |
| 고맙습니다 | gomapseumnida | Equally polite, slightly warmer in feel |
| 고마워요 | gomawoyo | Softly polite — peers and people you know |
| 고마워 | gomawo | Casual — close friends and people younger than you |
| 정말 감사합니다 | jeongmal gamsahamnida | When someone genuinely went out of their way |
| 감사드립니다 | gamsadeurimnida | Most formal — official emails, speeches, notices |

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.
| Korean | Romanization | Feel |
|---|---|---|
| 아니에요 | anieyo | The everyday default — "it's nothing" |
| 별말씀을요 | byeolmalsseumeuryo | Polite — used with someone senior |
| 괜찮아요 | gwaenchanayo | Light and easy — 괜찮습니다 for a formal register |
| 천만에요 | cheonmaneyo | Textbook 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.
| Korean | Romanization | Meaning and use |
|---|---|---|
| 죄송합니다 | joesonghamnida | Formal "I'm sorry" — work, strangers |
| 미안해요 / 미안해 | mianhaeyo / mianhae | Friendly apology — polite / casual |
| 사랑해요 / 사랑해 | saranghaeyo / saranghae | "I love you" — polite / casual |
| 실례합니다 | sillyehamnida | "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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