Hello, I’m Kodak.
You want to answer someone in Japanese with a simple:
“Yes.”
“Got it.”
“That’s fine.”
“Go ahead.”
But Japanese has several possible responses:
わかりました
了解
はい
うん
いいよ
大丈夫
どうぞ
It can mean:
“I understand.”
“Message received.”
“Yes.”
“That plan is acceptable.”
“You have permission.”
“There is no problem.”
Japanese usually chooses a different expression for each job.
わかった／わかりました
⇒ I understand / Got it
了解
⇒ Message received / Roger
うん／はい
⇒ Yeah / Yes / I’m listening
いいよ／いいですよ
⇒ Sure / That’s fine / Go ahead
大丈夫
⇒ It’s okay / No problem / I’m fine
どうぞ
⇒ Please go ahead / Here you are
① how to say “okay” in Japanese
② how to say “yes” casually and politely
③ which expression means “I understand”
④ which expression means “message received”
⑤ how to accept a plan or give permission
⑥ how politeness changes each response
⑦ which expressions to use with friends, teachers, bosses, and customers
⑧ common anime responses and beginner mistakes
How Do You Say “Okay” in Japanese?
There is no single Japanese word that matches every use of English “okay.”
The correct answer depends on what you want to communicate.
⇒ わかった／わかりました
Did you receive and acknowledge a message?
⇒ 了解／了解しました
Are you answering yes?
⇒ うん／はい
Are you accepting a suggestion or giving permission?
⇒ いいよ／いいですよ
Are you saying there is no problem?
⇒ 大丈夫／大丈夫です
Are you inviting someone to proceed?
⇒ どうぞ
わかった／わかりました
了解／了解しました
うん／はい
いいよ／いいですよ
These cover most beginner situations involving “okay,” “yes,” “got it,” and “sure.”
Quick Comparison: 8 Ways to Say OK or Yes
Casual “Got it.”
Use when you understood a message or instruction.
わかりました (wakarimashita)
Polite “I understand.”
Use with teachers, unfamiliar people, and in polite conversation.
了解 (ryōkai)
Casual “Roger” or “Message received.”
Common with friends, teammates, and close coworkers.
了解しました (ryōkai shimashita)
Polite “Understood” or “Acknowledged.”
Common in ordinary workplace communication.
うん (un)
Casual “Yeah,” “Uh-huh,” or “Okay.”
Use with close people.
はい (hai)
Polite or neutral “Yes,” “I’m listening,” or “Understood.”
Use in polite situations.
いいよ (ii yo)
Casual “Sure,” “That’s fine,” or “Go ahead.”
Use to accept or permit something.
いいですよ (ii desu yo)
Polite “Certainly,” “That’s fine,” or “You may.”
1. Wakatta and Wakarimashita: “I Understand”
wakatta
Got it. / I understand. — casual
わかりました
wakarimashita
Understood. / I understand. — polite
Use these expressions when information, an explanation, or an instruction has become clear.
A：駅に着いたら連絡して。
Eki ni tsuitara renraku shite.
Contact me when you get to the station.B：わかった。
Wakatta.
Okay. / Got it.
先生：宿題は金曜日までに出してください。
Sensei: Shukudai wa kin-yōbi made ni dashite kudasai.
Please submit the homework by Friday.学生：はい、わかりました。
Gakusei: Hai, wakarimashita.
Yes, understood.
“I have now understood it.”
↓
“Got it.”
・someone explains something
・someone gives you instructions
・you understand a rule or reason
・you discover an answer or cause
・you want to say “Got it”
Read the complete guide: Wakatta vs Wakarimashita—Meaning, Difference, and Natural Usage
2. Ryoukai: “Message Received” or “Roger”
Ryōkai!
Got it! / Roger! — casual
了解です。
Ryōkai desu.
Got it. — conversational and lightly polite
了解しました。
Ryōkai shimashita.
Understood. / Acknowledged. — polite
了解 means that you received, understood, and acknowledged the information.
A：明日の集合は8時です。
Ashita no shūgō wa hachi-ji desu.
Tomorrow’s meeting time is eight.B：了解です。
Ryōkai desu.
Got it.
了解 focuses on acknowledging the message.
A useful English comparison is:
わかった = “I understand.”
了解 = “Message received.”
・confirming a plan
・acknowledging a teammate’s instruction
・replying in a friendly workplace chat
・confirming that a message was received
・using a short “roger” style response
Read the complete guide: Ryoukai Meaning—了解, 了解です, and 了解しました
3. Un and Hai: Casual and Polite “Yes”
un
Yeah. / Uh-huh. / Okay. — casual
はい
hai
Yes. / I’m listening. / Understood. — polite or neutral
A：明日も来る？
Ashita mo kuru?
Are you coming tomorrow too?B：うん、行くよ。
Un, iku yo.
Yeah, I am.
A：説明はわかりましたか。
Setsumei wa wakarimashita ka.
Did you understand the explanation?B：はい、わかりました。
Hai, wakarimashita.
Yes, I did.
うん feels like “yeah” or “uh-huh.”
はい feels like “yes” or “I’m listening.”
Both can also function as listener responses rather than complete agreement.
How to Say Yes in Japanese Casually
Yeah.
うん、そうだよ。
Yeah, that’s right.
うん、いいよ。
Yeah, sure.
うん、わかった。
Yeah, got it.
そう。
Right. / That’s right.
そうだね。
Yeah, that’s true. / Right.
“I’m listening.”
“I understand what you are saying.”
“Please continue.”
It does not always mean final agreement.
Read the complete guide: Un vs Hai—Casual Yes, Polite Yes, and Japanese Nodding
4. Ii Yo and Ii Desu Yo: “Sure” or “Go Ahead”
ii yo
Sure. / That’s fine. / Go ahead. — casual
いいですよ
ii desu yo
Certainly. / That’s fine. / You may. — polite
Use these expressions when a request, plan, or action is acceptable.
A：このペン、使ってもいい？
Kono pen, tsukatte mo ii?
Can I use this pen?B：いいよ。
Ii yo.
Sure. / Go ahead.
A：こちらに座ってもいいですか。
Kochira ni suwatte mo ii desu ka.
May I sit here?B：はい、いいですよ。
Hai, ii desu yo.
Yes, certainly.
いいよ means the request or action is acceptable.
あとで電話して。— わかった。
Call me later. — Got it.
あとで電話してもいい？— いいよ。
Can I call later? — Sure.
Read the complete guide: Ii Yo Meaning—いいよ vs いいですよ
5. Daijoubu: “It’s Okay” or “No Problem”
daijōbu
Okay; all right; fine; safe; no problem — casual
大丈夫です
daijōbu desu
I’m fine; that’s okay; no problem — polite
大丈夫 focuses on there being no problem or on someone or something being all right.
A：転んだけど、大丈夫？
Koronda kedo, daijōbu?
You fell—are you okay?B：うん、大丈夫。
Un, daijōbu.
Yeah, I’m okay.
A：7時で大丈夫ですか。
Shichi-ji de daijōbu desu ka.
Does seven work for you?B：はい、大丈夫です。
Hai, daijōbu desu.
Yes, that’s fine.
“I’m fine without it.”
↓
“No, thank you.”
For example:
袋は必要ですか。— 大丈夫です。
Do you need a bag? — No, thank you.
6. Douzo: “Please Go Ahead”
dōzo
Please; go ahead; after you; here you are
Use どうぞ when actively inviting someone to proceed or offering something.
A：入ってもいいですか。
Haitte mo ii desu ka.
May I come in?B：はい、どうぞ。
Hai, dōzo.
Yes, please come in.
こちらをどうぞ。
Kochira o dōzo.
Here you are. / Please take this.
どうぞ actively invites the person to proceed.
You can combine them:
いいですよ。どうぞ。
That’s fine. Please go ahead.
How to Say “Yes” in Japanese
The safest general word is はい, but natural Japanese has several kinds of “yes.”
Yes — polite or neutral
うん
Yeah — casual
そうです
That is correct / That’s right — polite
そう
Right / Yeah — casual
もちろん
Of course
ぜひ
Definitely / I would love to
いいですよ
Yes, that’s fine / You may
わかりました
Yes, understood
Casual Ways to Say Yes
Yeah.
そう。
Right. / That’s right.
そうだね。
Yeah, that’s true.
いいよ。
Sure.
わかった。
Got it.
了解！
Roger! / Got it!
もちろん。
Of course.
オッケー。
Okay.
Polite Ways to Say Yes
Yes.
そうです。
That’s right.
わかりました。
Understood.
いいですよ。
Certainly / That’s fine.
了解しました。
Acknowledged.
承知しました。
Certainly / Duly noted — formal business
かしこまりました。
Certainly — highly polite customer service
Can You Say “OK” as オッケー in Japanese?
Yes. Japanese speakers also use the loanword オッケー (okkē).
Okay!
オッケーです。
It’s okay. / That works.
これでオッケー？
Is this okay?
準備オッケー。
Ready. / Preparation complete.
わかった shows understanding.
了解 acknowledges a message.
いいよ gives acceptance or permission.
大丈夫 says there is no problem.
These distinctions make your Japanese more natural.
Which Expression Should You Use?
⇒ わかった。
Got it.
Your teammate sends a plan
⇒ 了解！
Roger!
Your friend asks a yes/no question
⇒ うん。
Yeah.
Your teacher asks a yes/no question
⇒ はい。
Yes.
Your friend asks permission
⇒ いいよ。
Sure. / Go ahead.
An unfamiliar person asks permission
⇒ いいですよ。
Certainly.
Someone asks whether you are physically okay
⇒ 大丈夫。／大丈夫です。
I’m okay.
You invite someone to enter or take something
⇒ どうぞ。
Please go ahead. / Here you are.
How Politeness Changes Japanese Responses
うん
わかった
了解
いいよ
大丈夫
オッケー
Polite everyday Japanese
はい
わかりました
了解しました
いいですよ
大丈夫です
Formal business or customer service
承知しました
かしこまりました
問題ありません
差し支えありません
いいよ → いいですよ works naturally.
大丈夫 → 大丈夫です works naturally.
But some expressions have their own polite forms:
わかった → わかりました
了解 → 了解しました
うん → はい
Same English “Okay,” Different Japanese
あとで電話して。
Call me later.
わかった。
Okay. / Got it.
⇒ The instruction was understood.
集合は8時です。
The meeting time is eight.
了解です。
Okay. / Got it.
⇒ The message was received.
明日来る？
Are you coming tomorrow?
うん。
Okay. / Yeah.
⇒ A casual affirmative answer.
7時でいい？
Is seven okay?
いいよ。
Okay. / That’s fine.
⇒ The proposed time is acceptable.
少し遅れても大丈夫？
Is it okay if I’m a little late?
大丈夫。
Okay. / No problem.
⇒ The delay will not cause a problem.
Memorize the Japanese function:
わかる = understand
了解 = acknowledge
うん／はい = answer or listen
いい = accept or permit
大丈夫 = no problem
どうぞ = invite to proceed
Japanese Responses in Anime and Manga
Yeah!
わかった！
Got it!
了解！
Roger!
いいよ。
Sure.
オッケー！
Okay!
任せて！
Leave it to me!
いいって。
I said it’s fine.
もういいよ。
That’s enough. / Forget it.
For everyday conversation, start with:
うん
わかった
はい、わかりました
いいよ／いいですよ
了解です
Natural Example Sentences
うん、そうだよ。
Un, sō da yo.
Yeah, that’s right.
はい、わかりました。
Hai, wakarimashita.
Yes, understood.
わかった。あとでやる。
Wakatta. Ato de yaru.
Okay. I’ll do it later.
了解！8時に行くね。
Ryōkai! Hachi-ji ni iku ne.
Got it! I’ll be there at eight.
了解しました。すぐに確認します。
Ryōkai shimashita. Sugu ni kakunin shimasu.
Understood. I’ll check immediately.
この本、借りてもいい？— いいよ。
Kono hon, karite mo ii? — Ii yo.
Can I borrow this book? — Sure.
こちらに座ってもいいですか。— いいですよ。
Kochira ni suwatte mo ii desu ka. — Ii desu yo.
May I sit here? — Certainly.
7時で大丈夫？— うん、大丈夫。
Shichi-ji de daijōbu? — Un, daijōbu.
Does seven work? — Yeah, that’s fine.
どうぞ、入ってください。
Dōzo, haitte kudasai.
Please come in.
オッケー、準備できた。
Okkē, junbi dekita.
Okay, I’m ready.
もちろん、いいよ。
Mochiron, ii yo.
Of course, sure.
承知しました。明日までに送ります。
Shōchi shimashita. Ashita made ni okurimasu.
Certainly. I’ll send it by tomorrow.
Mini Conversations
Conversation 1: Understanding an Instruction
Message me when you get to the station.
Yeah, got it.
Conversation 2: Acknowledging a Plan
Tomorrow’s meeting place is the east exit.
Got it.
Conversation 3: Giving Permission
May I take a photo here?
Yes, certainly.
Conversation 4: Casual Yes
Are you coming tomorrow too?
Yeah, I am.
Conversation 5: Customer Service
One of these, please.
Certainly.
Common Beginner Mistakes
Mistake 1: Translating Every “Okay” as オッケー
オッケー is usable, but other expressions often communicate the situation more precisely.
Mistake 2: Using うん in Polite Conversation
うん is casual. Use はい with teachers, unfamiliar people, customers, and superiors unless a casual relationship is clearly established.
Mistake 3: Using いいよ to Confirm Understanding
⇒ わかった。
Got it.
“May I call you later?”
⇒ いいよ。
Sure.
Mistake 4: Assuming a Nod Means Complete Agreement
A nod or はい／うん during a conversation may only mean “I’m listening.”
Mistake 5: Assuming いいです and 大丈夫です Are Always Positive
Both can sometimes decline an offer by implying “I’m fine without it.” Add clearer words when misunderstanding is possible.
Mistake 6: Using 了解です with Every Superior or Client
It is conversational and efficient, but 承知しました is generally safer in formal business communication.
Mistake 7: Mixing Casual and Polite Styles
うん、わかった。いいよ。
Yeah, got it. Sure.
Polite set:
はい、わかりました。いいですよ。
Yes, understood. Certainly.
FAQ About Saying Okay and Yes in Japanese
How do you say okay in Japanese?
Common choices include わかった for “Got it,” 了解 for “Message received,” いいよ for “Sure,” 大丈夫 for “No problem,” and オッケー for a casual loanword “okay.”
What is the Japanese word for OK?
Japanese uses オッケー, but the most natural expression depends on whether you mean understanding, acknowledgment, agreement, permission, or no problem.
How do you say yes in Japanese?
はい (hai) is the standard polite or neutral word for “yes.”
How do you say yes in Japanese casually?
うん (un) is the most common casual “yeah” or “yes.” Other casual affirmative responses include そう, いいよ, わかった, and 了解, depending on the situation.
What is the difference between hai and un?
Hai is polite or neutral, while un is casual. Both can also show that the listener is following the conversation.
What is the difference between wakatta and ryoukai?
Wakatta focuses on understanding. Ryoukai focuses on receiving and acknowledging a message.
What is the difference between wakatta and ii yo?
Wakatta means “I understood.” Ii yo means “That is acceptable,” “Sure,” or “Go ahead.”
What is the difference between ii yo and daijoubu?
Ii yo focuses on permission or acceptance. Daijoubu focuses on there being no problem or on someone being all right.
Can daijoubu desu mean no?
Yes. It can mean “No, thank you” when the implied meaning is “I’m fine without it.”
Can ii desu mean no?
Yes. In response to an offer, it can mean “No, thank you” or “I don’t need it.” Context and tone are important.
Is ryoukai desu polite?
It is conversational and lightly polite. It is common among coworkers, but may sound too casual in formal client-facing communication.
What should I say to a teacher?
Useful polite responses include はい, わかりました, and いいですよ, depending on whether you are answering yes, confirming understanding, or giving permission.
What should I say to a boss?
はい、わかりました is often suitable for ordinary instructions. In more formal business communication, 承知しました may be safer.
What should a store employee say to a customer?
かしこまりました is a highly polite and common customer-service acknowledgment.
Can I say okkee in Japanese?
Yes. オッケー is common in casual speech, but it is less suitable for formal situations.
Related Guides
Learn the difference between casual “Got it” and polite “I understand.”
Ryoukai Meaning
Learn how 了解, 了解です, and 了解しました differ.
Un vs Hai
Learn casual and polite “yes,” Japanese nodding, and listener responses.
Ii Yo Meaning
Learn how いいよ and いいですよ express permission, acceptance, and reassurance.
Summary: How to Say Okay and Yes in Japanese
“I understand” or “Got it.”
Use after information or instructions become clear.
● 了解／了解しました
“Message received,” “Roger,” or “Acknowledged.”
Use for plans, reports, and team communication.
● うん／はい
“Yeah” and “Yes.”
They can also show that you are listening.
● いいよ／いいですよ
“Sure,” “That’s fine,” or “Go ahead.”
Use for permission, acceptance, and willingness.
● 大丈夫／大丈夫です
“It’s okay,” “No problem,” or “I’m fine.”
Use for condition, safety, and lack of difficulty.
● どうぞ
“Please go ahead,” “After you,” or “Here you are.”
● オッケー
A casual Japanese loanword for “okay.”
● The easiest beginner rule
Understand ⇒ わかった
Acknowledge ⇒ 了解
Say yes ⇒ うん／はい
Accept or permit ⇒ いいよ
No problem ⇒ 大丈夫
Invite to proceed ⇒ どうぞ
Ask instead:
Am I understanding?
Acknowledging?
Answering yes?
Accepting?
Giving permission?
Saying there is no problem?
Once you know the function, the natural Japanese response becomes much easier to choose.