How to Say "Thank You" in Korean (감사합니다 & Every Level)

If you learn one Korean phrase before you ever set foot in Korea, make it 감사합니다 (gamsahamnida) — 'thank you'. You'll use it dozens of times a day: at the convenience store, getting off the bus, when a stranger holds a door. But like everything in Korean, the word bends to fit who you're talking to. Thank a close friend the way you'd thank a shop owner and it sounds oddly stiff; thank your boss the way you'd thank your best friend and it lands as rude. Here's exactly how to say it at every level, how to write it in Hangul, and how to handle the reply.

감사합니다 / 고맙습니다 / 고마워 — the levels

Korean splits 'thank you' two ways at once: how polite you are (formal → casual), and which root word you reach for (감사 or 고맙다). Start with the polite forms — they cover almost every situation a learner walks into.

• 감사합니다gamsahamnida

  Thank you (polite, standard)

  Your default. Strangers, shops, restaurants, coworkers, elders. Never wrong.

• 고맙습니다gomapseumnida

  Thank you (polite, warm)

  Same level as 감사합니다, slightly warmer and more personal. Fully interchangeable.

• 고마워요gomawoyo

  Thank you (polite-friendly)

  Softer and friendlier — with people you know but still keep -요 with.

• 고마워gomawo

  Thanks (casual / 반말)

  Close friends, siblings, anyone younger. The everyday 'thanks' between friends.

If you only remember two, remember 감사합니다 for everyone else and 고마워 for your friends. That pair will carry you through almost any day in Korea.

감사 vs 고맙다 — Sino-Korean vs native Korean

Here's the nuance most learners never get told. 감사 (gamsa) is a Sino-Korean word — it traces back to a Chinese character root, the same way English borrows 'gratitude' from Latin. 고맙다 (gomapda) is a pure native Korean word, the older homegrown one. That's why 감사합니다 shows up on official signs and in announcements (it feels a bit more formal and institutional), while 고맙습니다 carries a warmer, more heartfelt tone. In practice Koreans treat them as near-twins, but if you want to sound a little more sincere and personal, 고맙습니다 is a lovely choice.

Thank you so much: turning up the gratitude

To really mean it, you don't change the verb — you add an intensifier in front. 정말 ('really') is the most natural one.

• 정말 감사합니다jeongmal gamsahamnida

  Thank you so much (polite)

  정말 = 'really'. The go-to way to add weight when someone's done you a real favor.

• 정말 고마워jeongmal gomawo

  Thank you so much (casual)

  To a friend who came through for you. Warm and genuine.

• 너무 감사합니다neomu gamsahamnida

  Thank you so much (polite)

  너무 originally means 'too much' but is used everywhere now for 'so'.

• 정말 감사드립니다jeongmal gamsadeurimnida

  I'm deeply grateful (very formal)

  -드립니다 is humble-formal. For emails, speeches, or thanking someone senior.

How to write 감사합니다 in Hangul

'Thank you' in Hangul is 감사합니다 — five syllable blocks read left to right. Each block stacks its letters in the standard Hangul order. Here's the breakdown:

• 감gam

  ㄱ (g) + ㅏ (a) + ㅁ (m)

  A bottom consonant (받침) ㅁ closes the block with an -m.

• 사sa

  ㅅ (s) + ㅏ (a)

  Consonant left, vowel right.

• 합hap

  ㅎ (h) + ㅏ (a) + ㅂ (p)

  받침 ㅂ gives the -p sound.

• 니ni

  ㄴ (n) + ㅣ (i)

  The -ㅂ니다 ending marks formal-polite speech.

• 다da

  ㄷ (d) + ㅏ (a)

  Put together: 감 + 사 + 합 + 니 + 다 = 감사합니다.

If those letters look unfamiliar, our guide to the Korean alphabet (Hangul) walks through every consonant and vowel, and how to write in Korean covers stroke order so your 감사합니다 looks natural by hand.

"You're welcome" — and what Koreans actually say

Textbooks teach 천만에요 (cheonmaneyo), but here's the honest truth: almost nobody says it in everyday life. It sounds formal and a little dated. What Koreans really say is 아니에요 — literally 'it's nothing' — to gently brush off the thanks.

• 아니에요anieyo

  You're welcome (lit. 'it's nothing')

  The natural, everyday reply. Polite and modest. Casually: 아니야 (aniya).

• 천만에요cheonmaneyo

  You're welcome (textbook)

  Grammatically correct but stiff — you'll hear 아니에요 far more often.

• 별말씀을요byeolmalsseumeullyo

  Don't mention it (polite)

  Modest and warm — 'such words aren't necessary'. Common with elders.

When a bow says it for you

Gratitude in Korea isn't only words. A small bow — really just a nod and a tilt of the head — naturally accompanies 감사합니다 with elders, customers, or in any formal setting. The rule of thumb: the more senior the person or the bigger the favor, the deeper the bow. With close friends, skip it entirely; a casual 고마워 and a smile is all anyone expects. Watch how locals do it and you'll pick up the rhythm fast.

Reading the register — why it matters

The tricky part of 'thank you' in Korean isn't the words, it's the instinct for which one to use and when to drop from polite 고마워요 down to casual 고마워 as a friendship warms. That switch from 존댓말 to 반말 is a small but real milestone in a Korean relationship. The fastest way to build the instinct is to practice in low-stakes conversation. In our AI character chat, characters speak to you at different politeness levels, so you can feel when 감사합니다 should soften into 고마워. For the broader set of everyday phrases, see our guide to basic Korean greetings, and for the deeper logic of why level matters so much, read Korean honorifics explained. Want the cultural side — bowing, manners, what's polite at the table? Our guide to Korean culture and etiquette covers it.