27 Best 18th Birthday Instagram Captions

You want to wish yourself with a cool birthday instagram caption or you want a caption for your beloved ones. That's not an issue i have mentioned best instagram captions for birthday when your beloved one is turning 18.

18th Birthday Captions for Instagram

Adults are only kids grown up anyway – Walt Disney

Here goes nothing #Adulting

License to … drive.

Mama we made it

Don’t be fooled

Cheers to 18 years

On your first day of adulthood, I hope you enjoy the day and night as much as possible. And make sure you leave the tab for someone else.

Welcome to the club of adulthood. However, we’d prefer it if you didn’t let the police know because otherwise we’ll soon meet you behind bars. Happy Birthday!

You’ll soon find out that being an adult is much less exciting than being a child. But shhhh don’t tell anyone. That’s our secret. Happy 18th!

I hope you wake up tomorrow and realize how lucky you are to have had me as a friend for so many years. But that’s tomorrow. Today is about you. Happy Birthday!

Now is the time to decide what kind of person you are going to be, which is much more important than deciding your career. Choose wisely!

Another year older, and you just keep getting more amazing! I can’t wait to see what this year brings for you.

You’ve grown up and now it’s time for you to leave the nest. I hope you’ve been practicing how to fly! Happy Birthday, dear one.

As you become an adult, you will be more free in some ways and less free in others. You’ll definitely need to wear pants outside of the house. Happy Birthday!

Now you’re an adult. Please grow up, but never grow old. Please.

The choices you make today determine where you’re going to be tomorrow. Make good ones!

Funny Instagram Captions for 18 Birthday

Turning eighteen is an important milestone in everyone’s life. Being an adult certainly has its privileges – like buying cigarettes and lotto tickets! Happy Birthday!

Your 18th birthday should be a national holiday! Allow me to honor your eighteen years of life by taking the day off. Happy Birthday!

Eighteen years ago today, you emerged from the womb. Congratulations on your adulthood! Happy Birthday!

On your birthday, I hope you have a wild and crazy celebration! But not too crazy – you can be legally tried as an adult now. Happy Birthday!

Congratulations on having another birthday! Statistically speaking, people who have more birthdays live longer, so keep up the good work! Happy Birthday!

On your 18th birthday, go crazy! Eat some cake, cause some trouble, take your pants off! Or don’t. Happy Birthday!

You’re the best! If we were in the Hunger Games, I’d kill you last. Happy Birthday!

On your birthday, there’s nothing I wouldn’t give you. Unless we had to jump out of a plane with just one parachute – then you’re on your own. Happy Birthday!

Happy Birthday Friend! You look like a million bucks. Now that you’re eighteen, You’ll see the real world sucks!