The short answer
Korean changes the ending of “I love you” to match the relationship and setting. The three forms you will see most often are:
- 사랑해 (saranghae) — casual and intimate.
- 사랑해요 (saranghaeyo) — polite and warm.
- 사랑합니다 (saranghamnida) — formal and public-facing.
The card above includes 사랑해 and 사랑해요 because they cover the most useful personal situations. 사랑합니다 is correct, but it often fits speeches, announcements, performances, or deliberately formal messages better than a private conversation between partners.
There is no gender change. A woman, man, or nonbinary speaker can use the same form. What changes is the speech level: Korean endings show how the speaker relates to the listener.
사랑해 or 사랑해요?
Use 사랑해 with someone when casual speech is already natural between you. Partners, close friends, and family members may use it, but closeness alone does not give a learner permission to switch speech levels. Follow the way you already speak to that person.
Use 사랑해요 when you want a polite form or when your relationship still uses polite speech. The final 요 (yo) makes the expression polite without turning it into a stiff announcement. That makes 사랑해요 a practical choice when you are unsure whether casual speech fits.
사랑합니다 uses the formal -ㅂ니다 style. You may hear it in a speech, a public thank-you, a fan message delivered to a crowd, or a formal declaration. It is not “more loving” than the other forms. It is simply a different speech style.
Where the phrase comes from
All three forms come from 사랑하다 (saranghada), the verb “to love.” Korean often leaves out the subject and object when the conversation already makes them clear. That is why 사랑해 can function as a complete “I love you” even though it does not contain separate words for “I” and “you.”
Trying to rebuild the English sentence word by word can make Korean sound unnatural. You usually do not need to add 나는 (naneun), “I,” or 너를 (neoreul), “you,” in a private exchange. Those words can add contrast or emphasis, but the short form is complete when the context is obvious.
Avoid adding 당신 (dangsin) just because a dictionary labels it “you.” Korean terms of address depend heavily on the relationship, and 당신 can sound distant, confrontational, literary, or appropriate only in a specific established context. The safest simple expression needs no pronoun.
How to pronounce 사랑해
The romanization is saranghae. Break it into sa-rang-hae.
- sa has a short, open vowel.
- rang ends with the Korean ㅇ sound, like the ng in “song.”
- hae is one syllable and sounds roughly like “heh,” not the English word “hay” with a long glide.
Say the syllables evenly at first: sa-rang-hae. Then use the recording to copy the natural timing. Romanization is a reading aid, not an exact replacement for listening.
For 사랑해요, add one clear syllable: sa-rang-hae-yo. Do not turn 해요 into a single English-sounding word. For 사랑합니다, the spelling is romanized saranghamnida, while natural pronunciation makes the ㅂ before ㄴ sound closer to an m. Listening will make that change clearer than an English spelling can.
How to write I love you in Korean
Write the phrase in Hangul as 사랑해, 사랑해요, or 사랑합니다. Spaces are not needed inside these forms because each is one conjugated verb.
The base word 사랑 means love, and 하다 is used to form the verb 사랑하다. The endings then change to create the casual, polite, or formal form. Do not mix an ending from one level with a label copied from another page.
If you are writing a card or message, copying the Hangul is better than sending romanization alone. Saranghae helps a learner read, but 사랑해 is what a Korean reader expects to see.
사랑해 and 좋아해 are not the same
좋아해 (joahae) means “I like you” in casual speech. 좋아해요 (joahaeyo) is the polite form. In a romantic context, either can communicate interest or a crush without making the larger declaration carried by 사랑해.
That distinction appears often in questions about Korean confessions. Someone may choose 좋아해요 because it honestly describes the beginning of their feelings. It should not be translated upward into “I love you” simply because the moment is romantic.
Think about the message first. If you mean “I like you” or “I have feelings for you,” choose 좋아해 or 좋아해요. If you mean love, choose the 사랑 form that matches your speech level.
How to say I love you too
For a casual reply, say 나도 사랑해 (nado saranghae). 나도 means “me too” or “I also.”
For a polite reply, use 저도 사랑해요 (jeodo saranghaeyo). 저 is the polite first-person form, and 도 adds “too.” Match the reply to the speech level of the conversation rather than combining casual and polite pieces at random.
You can also repeat the original phrase on its own when the context makes the reply clear. A personal sentence about what the person means to you will often carry more warmth than adding several memorized expressions.
Common mistakes to avoid
- Do not use 사랑합니다 because you assume formal grammar means stronger love.
- Do not use 사랑해 with someone when your relationship still requires polite speech.
- Do not insert 당신 as a universal word for “you.” The phrase works naturally without it.
- Do not pronounce the final ng in 사랑 like a hard g.
- Do not write the romanization as if it were the Korean phrase. Use Hangul for a Korean reader.
- Do not treat a line from a drama as proof that the same speech level fits your real relationship.
Frequently asked questions
What is the most common Korean way to say I love you?
사랑해 and 사랑해요 are the most useful personal forms. Choose 사랑해 in an established casual relationship and 사랑해요 when polite speech fits.
Is saranghae formal or informal?
사랑해 is casual. 사랑해요 is polite, and 사랑합니다 is formal. These labels describe speech style, not three fixed levels of emotional intensity.
Can I say 사랑해 to family or friends?
Yes, when that relationship naturally uses casual speech and the meaning is clear. Some people say it often; others express affection differently. Follow the relationship rather than a universal script.
How do I say I love you in Korean to a boyfriend or girlfriend?
Use 사랑해 if you already speak casually together, or 사랑해요 if you use polite speech. The phrase does not change for the listener’s gender.