Unlimited PS Actions, graphics, videos & courses! Unlimited asset downloads! From $16.50/m
  1. Design & Illustration
  2. Drawing

How to Draw a T-Rex Dinosaur

This post is part of a series called Science Week.
How to Create a Set of Science Icons in Affinity Designer
How to Create a Human Cyborg Photo Manipulation in Adobe Photoshop
Final product image
What You'll Be Creating

We all loved dinosaurs as children, and T-Rex is the favorite of many. This huge, ferocious beast surely captures our imagination! 

In this tutorial I will show you how to draw one, but also more than that—I will teach you how to draw an animal from scratch, using 3D blocks to build a final 3D form of the creature.

1. How to Sketch a Dinosaur Silhouette

Step 1

Draw a shallow arc—this will be the back of our dinosaur.

sketch dinosaur back

Step 2

Add the curved neck and the tail (the tail should be longer than the rest of the body).

sketch dinosaur neck and tail

Step 3

Add a boxy body under the back. It should have a longer front (chest) and a shorter back (hips).

sketch dinosaur body

Step 4

Sketch the legs. They're just like our legs, except T-Rex walks on its toes.

sketch dinosaur legs

Step 5

Sketch the width of the feet. This will help you see their position better.

sketch dinosaur feet

Step 6

Sketch the head. It doesn't need to be detailed—just an egg shape at the end of the neck.

sketch dinosaur head

Step 7

Sketch the places for the eyes and nostrils to understand the perspective you're creating.

sketch dinosaur eyes

Step 8

Now add the shoulders and arms; nothing fancy here.

sketch dinosaur arms

Step 9

Complete the silhouette with the "lower neck" and "lower tail".

sketch dinosaur silhouette

2. How to Draw the T-Rex's Head

Step 1

We have the skeleton of our drawing—we can see exactly where we're going. Now we can add the detailed blocks of the body.

Start by sketching a cube or a cuboid inside the head of our dino. Its perspective must match the perspective you've sketched before—it can't be random! In other words, the cube should be facing the same way as the dinosaur.

how to draw dino head in perspective
If you want to learn how to do it, don't copy my lines, but rather try to understand why I decided to draw them this way.

Step 2

Extend the bottom of the cube to create the length of the muzzle. Cross it with its width. The muzzle of the T-Rex is narrower than the skull.

how to draw dino upper jaw

Step 3

We're going to create two ellipsoidal domes for the muzzle, but they're seen in perspective, so we need to do it vary carefully. An ellipse in perspective has long, flat arcs in front of the obtuse angles...

how to draw ellipse in perspective

... and short, convex arcs in front of the acute angles. Remember this rule!

how to draw ellipsoid in perspective

Step 4

Use the same rule to create the other ellipses building this "dome".

dome in perspective
ellipsoid in 3d
how to draw dino upper jaw

Step 5

Connect the dome with the rest of the skull.

how to draw trex skull

Step 6

Create a smaller version of the same dome in the lower jaw. Relax—you already know how to do it!

how to draw lower jaw

Step 7

Finish the lower jaw by creating its wider part first...

how to draw dino jaws

... then completing the lines.

how to draw trex jaws

Step 8

Draw the teeth all around the jaws. They should be slightly uneven and not completely pointed.

how to draw trex teeth

Step 9

Finish the head by adding the eye socket with the tiny eye inside, and the jaw muscles.

how to draw trex eye

3. How to Draw T-Rex Feet and Claws

Step 1

Feet and hands are made of many small elements allowing for motion. Let's work on them one by one.

Draw cylinders in the place of the joints: in the ankle and right before the toes.

how to draw trex feet joints

Step 2

Connect both cylinders with blocks.

how to draw trex feet

Step 3

Draw small domes at the tips of the toes. You don't need to draw them all at once, if they cover each other. Make the middle dome the biggest.

how to draw trex toes

Step 4

Draw the openings for the claws in the front of each dome.

how to draw dinosaur claws

Step 5

Draw big, slightly curved claws.

how to draw trex claws

Step 6

To finish the toes, connect the domes with the cylinders with a path of "plates".

how to draw dinosaur feet

Step 7

Then add the lower part.

how to draw dragon feet

Step 8

Finish the feet by adding the toes in the back, a "foot-thumb", and a foot pad below the toe joints.

how to draw t rex legs

Step 9

Let's draw the arms now. They're short, but heavily muscled. Start with two circles for these muscles.

how to draw trex arms

Step 10

Draw the little forearms.

how to draw trex forearms

Step 11

Add some depth to the arm by drawing directing lines on it.

how to draw dinosaur arms

Step 12

Draw the tips of both fingers on each hand.

how to draw dinosaur fingers

Step 13

Draw the top...

how to draw dinosaur hands

... and bottom of each finger.

how to draw dinosaur foot pads

Step 14

Finally, add the little claws.

how to draw t rex hand claws

4. How to Draw the Dinosaur's Body

Step 1

To draw the shoulders, imagine a horse collar on them. First draw its opening...

how to draw dinosaur shoulders

... then its side surface...

how to draw trex shoulders

... and finally, its lower part that will be the chest.

how to draw trex chest

Step 2

Draw big muscle masses for both the thigh and the calf.

how to draw trex legs

Step 3

Let's add perspective to the hind legs now. Use directing lines to mark the front and side of the calves.

how to draw trex limbs

Step 4

Do the same with the thigh, adding the knee between both parts.

how to draw trex thigh

Step 5

Time to add volume to the rest of the body. The T-Rex's neck should be visibly S-curved. You can achieve that by drawing curved lines between the head and the shoulders.

how to draw trex neck

Step 6

But that's not all! Cross them with more lines to show the curving side of the neck.

how to draw trex neck in 3d

Step 7

Use the same trick to define the volume of the rest of the body.

how to draw trex body
Notice the depression between the chest and hips.
how to draw dinosaur hips
Don't forget about these funny dinosaur hips!
how to draw dinosaur body

5. How to Draw the Dinosaur's Skin and Details

Step 1

The base for the drawing is finished, so we can draw the final lines now. In digital art you can create a new layer now. In traditional art, put a new sheet of paper over the drawing or draw the final lines with a darker tool.

Draw the tiny eye and the nostrils.

how to draw trex face

Step 2

Outline the shape of the head. If you want a realistic T-Rex, cover the teeth more (or skip to the end of this tutorial to learn more about T-Rex realism).

how to draw trex head

Step 3

Outline the teeth and add some details to the skull. The depressions in the skull are not necessary if you want to be more realistic.

how to draw t rex skull details

Step 4

Envelop the whole body into one piece of skin. Draw wrinkles between the separate parts of the body.

how to draw t rex skin

Step 5

The hands and feet should be enveloped in one piece of skin as well. There will be more wrinkles, because there are more elements here.

how to draw dragon claws

Step 6

You can add more wrinkles all over the skin to accentuate the directing lines and stress the perspective of the body.

how to draw dinosaur skin

Step 7

Finally, you can shade the body to show the volume even better.

how to shade dinosaur

Step 8

If you want to create a more scientifically accurate T-Rex, you need to make some changes:

  • The teeth should be mostly covered (by gums and lips), because T-Rex is not aquatic like a crocodile and its teeth would dry out being so bare.
  • The body should be a little rounder—the bones don't tell us anything about the fat layer, but it doesn't mean we should accentuate the bones so much.
  • There's evidence that other dinosaurs of T-Rex family had feathers, so it's likely that T-Rex had them as well—at least on a part of its body. If so, they weren't used for flight, but for warmth.
how to draw realistic trex
It may look like a bird, but remember that birds are dinosaurs as well!

Grrreat Job!

Do you want to learn more about this technique of drawing animals? Check these out:

how to draw t rex step by step from scratch
Looking for something to help kick start your next project?
Envato Market has a range of items for sale to help get you started.