37 best 20th birthday captions to leave your teens behind

Say goodbye to your teenaged years in style with these 20th Instagram birthday captions.

Facetune team
min read
Choose the best Instagram birthday captions for your 20th birthday

Your 20th birthday is a big one on Instagram. It's the birthday where you have to say goodbye to your teenage years — all documented on your IG stories and with 20th birthday captions — which were probably full of fun, debauchery, and a whole load of hormones.

Sob. It's been one heck of a ride, right?

The good news is, the fun doesn’t have to end here just because you no longer have "teen" at the end of your age. You can still choose to enjoy your youth while figuring out what it means to be an adult.

(Spoiler alert: The latter takes years so there’s no need to hurry.)


But first, let's give your teens the send-off they deserve. Use these Instagram birthday captions to tell the world it's your 20th birthday along with a cute selfie to show them that you're celebrating in style.

Short and Sweet 20th Birthday Captions for Instagram

  • 20 is the new 19.
  • Roaring twenties.
  • 2.0.
  • Cheers to 20!
  • Goodbye teens, hello twenties!
  • This is 20.
  • Level 20 unlocked.
  • 20/20 vision.
  • Chapter 20
  • Season 20, episode 1.



Sentimental 20th Birthday Captions for Instagram

  • Ending my amazing teens with a beautiful 20th birthday.
  • It's time to kiss 19 goodbye and welcome 20.
  • 20 never felt better.
  • 20: When life truly begins.
  • May this 20th birthday mark a fresh beginning in my life.
  • Ready to live my adult life blessed.
  • 20 and glowing.
  • Happy birthday to me, ready for a new decade.



Sassy and Witty 20th Birthday Captions

  • Made it through two decades! Here's to the next one.
  • Not a teenager anymore, so not to be treated like one.
  • It took me 20 years to get this cute.
  • Getting older but my inner child is ageless.
  • I didn’t choose this 20th birthday, this birthday chose me.
  • Cheers to a day as special as me.
  • Who knew that 20 would look this good?
  • Now we start planning for 21!
  • Just woke up from my teenage dream.
  • So am I a real adult now?!
  • Stuck in them twenty-somethings.
  • I've retired from the teenage years.
  • Hey, Alexa…Play 20 Something by Sza.
  • I think 20 chances aren't enough!
  • 7,305 days old ... but who's counting?
  • May my wisdom increase as I move out of my teenage years.
  • Turning 20 is a big deal so I deserve a big celebration!
  • Keep calm — it's my 20th birthday.
  • One more year left until I'm 21 so I better make the most of misbehaving!

No Longer a Teenage Dirtbag, Baby

Although these 20th birthday captions can help attract more likes, comments, and follows on Instagram, you can also use them to build engagement across TikTok, Twitter, YouTube, and/or Pinterest.

Don't be afraid to be bold on social media. Choose a caption that aligns with your authentic self and being young, wild, and free (because you still are!).


And as always, hashtags can help expand your reach on social media, but it's your personality that will attract people to you and get them to stick around for the long term.

Happy 20th, buddy!

Facetune team
Experts in elevating your selfies and offering the latest beauty, lifestyle, and photo editing tips. Your go-to source for all things Facetune.

Related articles

  • April hashtags to use on Instagram posts about spring and Easter
Bring out your best self in your selfies with Facetune
Join a community of 200M+ and discover why Facetune is the world's top selfie editor. Experience the fastest and easiest way to edit with our ultimate one-tap tools, made for every skill level.

Experiment with new looks, shine on social media & never run out of inspiration.
Start free trial