10 Ways to Say “Of Course”

In English, “of course” is a polite and positive way to show agreement or willingness. But native speakers use many different expressions to mean the same thing! Learning 10 ways to say of course will help you sound natural, warm, and confident in everyday conversations—whether you’re accepting an invitation, helping someone, or showing enthusiasm.

Common Ways to Say “Of Course”

Here are 10 natural alternatives to “of course,” grouped by tone and situation so you can choose the right one every time.

Friendly and casual

“Sure!”
A simple, cheerful response that shows you’re happy to agree or help.
Example: “Can you send me the notes later?” “Sure!”

“Absolutely!”
Strong and enthusiastic—use it to show full agreement or excitement.
Example: “Do you want to join us for dinner?” “Absolutely!”

“You got it!”
Very informal and friendly. Often used when agreeing to do a small favor.
Example: “Can you remind me to call Mom?” “You got it!”

“No problem.”
Relaxed and reassuring. Perfect when you want to sound kind and easygoing.
Example: “Thanks for helping me with this.” “No problem!”

Polite and professional

“Certainly.”
Polite and confident—great for customer service, emails, or formal settings.
Example: “Could you send me the report by Friday?” “Certainly.”

“Definitely.”
Expresses strong agreement or confirmation with energy and confidence.
Example: “Should we move forward with the plan?” “Definitely.”

“Of course, I’d be happy to.”
A polite, full-sentence version—ideal for offering help or accepting politely.
Example: “Would you mind reviewing my presentation?” “Of course, I’d be happy to.”

Warm and supportive

“Sure thing.”
Friendly and informal. Sounds relaxed but positive.
Example: “Can you pick me up at 6?” “Sure thing.”

“For sure.”
Very natural and upbeat. Common in casual American English.
Example: “Do you think they’ll win the game?” “For sure!”

“Without a doubt.”
Emphasizes certainty and confidence—great when you strongly agree.
Example: “Is she the best person for the job?” “Without a doubt.”

Real-life dialogues

At work (Professional)
Manager: “Can you send the updated file before 5 p.m.?”
You: “Certainly. I’ll finish it right after this meeting.”

With friends (Casual)
Friend: “Want to grab coffee after class?”
You: “Absolutely! I could use a break.”

Helping someone (Friendly)
Neighbor: “Could you watch my dog for an hour?”
You: “Of course, I’d be happy to.”

When to use these phrases

These 10 ways to say of course can fit any situation—just choose the tone that matches your conversation:

• Formal or professional: “Certainly,” “Definitely,” or “Of course, I’d be happy to.”
• Casual or friendly: “Sure,” “No problem,” or “You got it.”
• Supportive and positive: “Absolutely,” “For sure,” or “Without a doubt.”

Tip: Avoid repeating “of course” too often—it can sometimes sound impatient. These alternatives keep your English fresh, polite, and natural.

Try one today!

Now that you know 10 ways to say of course, try using one in your next conversation! Whether you’re agreeing with a friend, replying to a coworker, or simply showing enthusiasm, these phrases will make your English sound confident, warm, and fluent.

Say it your way—sure, absolutely, or without a doubt!