The 21st birthday is one of the most significant birthdays for many individuals, often symbolizing the transition into adulthood and independence. It’s a significant milestone that deserves to be celebrated, especially on social media. It’s the perfect opportunity to capture and share your special moments on the gram. While being creative with your posts, you do not have to stress about writing a caption for the perfect picture of the night. In this blog post, we will share 75 best 21st birthday captions for Instagram and quotes to inspire you

21st Birthday Instagram Captions

  • 21 reasons to act up tonight
  • Here’s to 21 🥂
  • So this is what 21 is all about 💅
  • Staying savage all year 2️⃣1️⃣
  • ID me, I dare you
  • 21 Wishes
  • Finally legal
  • 21 21 21
  • Now legal in 50 states
  • Got my ticket to the 21 club
  • Leveled up 21
  • Always been a savage, now I’m 21
  • Ageing nicely
  • Legalized
  • How she is only 21, and she’s a savage.
  • Here’s to my next pour decision!
  • Level 21 unlocked! 🎉🔥
  • 21 years of being a bad b
  • Started from the bottom, now we 21.
  • Wanna see my ID?
  • Adulting has arrived.
  • Ready for some serious fun!
  • I might act my age this year
  • And just like that, I am
  • Serving cake and serving looks
  • Cheers to 21 years and counting!

Related Post: 45 Best Birthday Quotes for Instagram

21st Birthday Ig Captions

21st Birthday Ig Captions

  • Drinks on me
  • Twenty1
  • Feeling 21
  • It’s about time
  • Check my ID
  • 21’s more fun
  • Turning this 21st birthday into a lifestyle
  • Chapter 21 🎂
  • 21 Candles
  • Now we sip champagne when we’re thirsty 🥂
  • 21 essentials
  • 21, wiser, and hotter than ever
  • Alexa, play 21 Savage
  • Let the celebration be”gin”
  • 21 looks pretty good on me
  • 21 years of being fabulous 💅
  • I’ve waited 21 years for this moment
  • Here’s to legal drinks and questionable decisions! 🍻😅
  • 21 years of being that girl!
  • 21 yeas in the making
  • Bring on the booze, I’m finally 21!
  • Call me savage cause I’m 21
  • Warning: it’s my 21st birthday
  • 21 years of perfection.
  • Cheers to 21 years of fabulousness! 🥂🎈
  • Cheers to legal everything! 🥳🍾
  • Let the celebrations begin! 🥂🎉
  • Never been better, never felt better.
  • One decade complete, and onto the next!

Related Post: 75 Unique Captions to Wish Someone Happy Birthday on Instagram

21st Birthday Insta Captions

Lyrics for 21st Birthday Captions

  • Go shawty, it’s your birthday. — 50 cent, ‘In Da Club’
  • 21, can you do sum for me? — Drake ft 21 Savage, ‘Rich Flex
  • It’s supposed to be fun turning 21. — Taylor Swift,  ‘All too Well’
  • I’ll be 21 and fancy and free. — The Shirelles, ‘Twenty-One’
  • Woah, 21 and invincible. Woah, can’t wait to screw this up. — Something Corporate, ’21 and Invincible’
  • I wouldn’t trade it for the world, I’m 21 now. — H.E.R., ’21’
  • Swimming in a champagne sea. — Taylor Swift, ‘This Is Why We Can’t Have Nice Thing’
  • 21 years, I love everyone. — TobyMac, ’21 Years’
  • My time, my wine, my spirit, my trust. — Taylor Swift, ‘Death By A Thousand Cuts’

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21st Birthday Quotes

  • You’re finally 21… and legally able to do everything you’ve been doing since you were 16. — Unknown
  • 21 is a terrific age, maybe the best. Too bad you can’t be that old for the rest of your life. — Greg Tamblyn
  • Being 21 isn’t all it’s cracked out to be. You have to start buying your own toilet paper. — Melanie White
  • Wanna see my I.D.? I totally have it. — Jenna Rink, 13 Going on 30
  • Turning 21 is a significant occasion for everyone, and it’s proved to be quite a milestone. — Emma Watson
  • 21 is when you finally grant your parents their freedom. — Melanie White
  • At 16, you can drive. At 21, you can have a cold one. Do both at the same time, and your present might not have a future. — Greg Tamblyn
  • On the roller coaster of life, your 21st birthday is like being at the top of the first giant hill with your hands in the air and no lap bar. – Greg Tamblyn
  • At twenty-one, so many things appear solid, permanent, and untenable. — Orson Welles 
  • As you grew, no matter what happened, we encouraged you to look at the sunny side of life. So as you turn 21, we wish you much sunshine and happiness. — Catherine Pulsifer

Final Thoughts

Your 21st birthday is a milestone that you will never forget. It marks the beginning of a new chapter in your life and brings countless opportunities for growth, adventure, and self-discovery. As you embark on this journey of adulthood, remember to always stay true to yourself and never stop pursuing your dreams. Use these 75 best 21st birthday captions for Instagram to capture and share your special day with the world. Whether you’re celebrating with friends, family, or on your own, remember that this is just the beginning, and there are endless possibilities waiting for you. So cheers to another year of laughter, love, and making unforgettable memories. As you scroll through social media and see others celebrating their 21st birthdays, take a moment to appreciate the uniqueness of each person’s journey. Let these captions be a reminder that age is just a number, and it’s never too late to pursue your passions and live life to the fullest. Embrace this new chapter with open arms and make the most out of every moment. Happy 21st birthday!