Coloring Page: T-Rex Celebrating His Birthday with Cake

T-Rex in a party hat standing in front of a big cake with candles, looking excited – printable coloring page

Happy birthday, T-Rex! Wearing a party hat, the king of the dinosaurs stands in front of a giant cake and can’t wait to blow out the candles. Our dinosaur birthday coloring page is the perfect page for any dino party. Grab the free printable and make this dinosaur coloring page festive!

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Why This Birthday T-Rex Is So Much Fun

Birthdays are the best day of the year for kids – and here even a T-Rex gets to celebrate! The party hat, cake, and candles invite bright patterns and colors. You can match the candles to the birthday kid’s age. It’s a page that brings good vibes to every dino party.

🖨️ Step by Step: How to Print It Best

1
Open the image
Click “Print” on the right, or download the image or PDF.
2
Choose portrait
Letter or A4 in portrait, scaling set to “Fit to page” – the dinosaur fits the sheet perfectly.
3
Pick your paper
Regular printer paper is fine for colored pencils; for paint, use thicker paper (65–110 lb).
4
Color & display
Grab your crayons and go – then give the finished masterpiece a spot on the fridge!

How Old Did a T-Rex Get?

Scientists can tell how old a dinosaur was by looking at its bones: each year, fine growth rings formed inside – a lot like the rings in a tree trunk. That’s how we know a T-Rex took about 20 years to grow up. It grew fastest as a teenager. The famous T-Rex skeleton “Sue” was probably around 30 years old – that’s a lot of birthdays! Of course, it never actually celebrated them.

Fun Ideas for Your Birthday Dino

Draw as many candles on the cake as the birthday kid is turning. The finished page makes a great invitation or birthday card. At a dino party, every kid can color their own T-Rex – with a prize for the brightest party hat!

Color Ideas for the Dino Birthday

Party colors for a big day:

🎉 Bright party hat
Stripes or dots in rainbow colors.
🎂 Yummy cake
Pink frosting with colorful sprinkles.
🕯️ Glowing candles
Yellow flames and colorful candles.
🟢 Green T-Rex
A classic green party guest.
💡 Coloring Tip: Dot little colorful sprinkles onto the cake – fine-tip markers make it easy.

Great Times for This Dinosaur Birthday Coloring Page

A party page for lots of occasions:

🎂
Birthday party
Set up a coloring station at the dino party.
💌
Invitations
Color it and send it as an invite.
🎁
Birthday card
A handmade birthday greeting.
🏫
Class birthday
For the birthday kid in class.

T-Rex Age Facts

How many birthdays did a T-Rex have?

🌳
Growth rings

Like in a tree.

📏
About 20 years

To reach full size.

🚀
Growth spurt

As a teenager.

🦴
“Sue”

Lived about 30 years.

More Everyday Dinosaur Coloring Pages

Dinos at school, playing sports, or floating in space – our collection has lots more dinosaurs doing everyday things.

Your Benefits at PureSketchy:

  • Party page: Hat, cake, and candles.
  • Card idea: Invitation or greeting.
  • Free to print: Download and print in seconds.
  • Real science: Age from bones.

Frequently Asked Questions (FAQ)

What age is this coloring page for?
This page works well for kids ages 5 to 8. The cake and T-Rex are big areas, and the candles and party hat invite colorful details.

Is the download free?
Yes, all coloring pages on PureSketchy are 100% free for personal use, preschools, and schools.

What should we color it with?
Markers are great for bright party colors, and colored pencils for sprinkles and details. Glitter pens make the hat extra festive.

Is there a German version?
Yes! You can find the German version at Dino-Geburtstag.