Eye Size Chart
This chart shows the diameter of eyes for various animal species and then the size of the eyeball at different scales. The measurements are for the total diameter of the eyeball not the iris. I'll hopefully have some resources on irises and pupils at a later time. If you would like to see an animal up here that isn't or can help me fill in the bottom few animals that I haven't been able to track down their eye size please email me or leave a comment at the bottom of the page. If you find this useful I would love to know.Thanks to the Wetcanvas Reference Image Library for most of the photos, the chicken and squirrel pictures are my own.
| Animal | Life | 1:2 | 1:3 | 1:4 | 1:6 | 1:8 | 1:12 | Pupil Shape | Photo |
|
Temnodontosaurus (Ichthyosaur) |
260mm | 130mm | 86.66mm | 65mm | 43.33mm | 32.5mm | 21.65mm |
Unknown
|
 |
| Giant Squid | 250mm | 125mm | 83mm | 62mm | 42mm | 31mm | 20mm | |
|
|
Opthalmosaurus (Ichthyosaur) |
230mm | 115mm | 76.66mm | 57.5mm | 38.33mm | 28.75mm | 19.16mm | |
|
| Blue Whale | 150mm | 75mm | 50mm | 37.5mm | 25 | 18.75 | 12.5 | |
|
| Moose | 40mm | 20mm | 13.3mm | 10mm | 6.6mm | 5mm | 3.3mm |
Horizontal Oval
|
|
| Horse | 34mm | 17mm | 11.3mm | 8.5mm | 5.6mm | 4.25mm | 2.8mm |
Horizontal Oval
|
 |
| Elephant | 34mm | 17mm | 11.3mm | 8.5mm | 5.6mm | 4.25mm | 2.8mm | |
|
| Cow | 34mm | 17mm | 11.3mm | 8.5mm | 5.6mm | 4.25mm | 2.8mm |
Horizontal Oval
|
 |
| Deer | 30mm | 15mm | 10mm | 7.5mm | 5mm | 3.75mm | 2.5mm |
Horizontal Oval
|
 |
| Boar | 28mm | 14mm | 9.3mm | 7mm | 4.6mm | 3.5mm | 2.3mm | |
|
| Cougar | 28mm | 14mm | 9.3mm | 7mm | 4.6mm | 3.5mm | 2.3mm | |
|
| Human | 24mm | 12mm | 8mm | 6mm | 4mm | 3mm | 2mm |
Round
|
 |
| Dolphin | 24mm | 12mm | 8mm | 6mm | 4mm | 3mm | 2mm | |
|
| Bear | 22mm | 11mm | 7.3mm | 5.5mm | 3.6mm | 2.75mm | 1.8mm |
Round
|
|
| Bobcat | 20mm | 10mm | 6.6mm | 5mm | 3.3mm | 2.5mm | 1.6mm |
Slit
|
|
| Fox | 20mm | 10mm | 6.6mm | 5mm | 3.3mm | 2.5mm | 1.6mm |
Round
|
|
| Great Horned Owl | 20mm | 10mm | 6.6mm | 5mm | 3.3mm | 2.5mm | 1.6mm |
Round
|
|
| Eagle | 18mm | 9mm | 6mm | 4.5mm | 3mm | 2.25mm | 1.5mm |
Round
|
|
| Wolverine | 14mm | 7mm | 4.6mm | 3.5mm | 2.3mm | 1.75mm | 1.2mm | |
|
| Redtail Hawk | 12mm | 6mm | 4mm | 3mm | 2mm | 1.5mm | 1mm |
Round
|
 |
| Loon | 12mm | 6mm | 4mm | 3mm | 2mm | 1.5mm | 1mm |
Round
|
|
| Barn Owl | 12mm | 6mm | 4mm | 3mm | 2mm | 1.5mm | 1mm |
Round
|
|
| Goose | 12mm | 6mm | 4mm | 3mm | 2mm | 1.5mm | 1mm |
Round
|
|
| Chicken | 10mm | 5mm | 3.3mm | 2.5mm | 1.6mm | 1.25mm | 0.8mm |
Round
|
 |
| Otter | 10mm | 5mm | 3.3mm | 2.5mm | 1.6mm | 1.25mm | 0.8mm | |
|
| Mallard Duck | 10mm | 5mm | 3.3mm | 2.5mm | 1.6mm | 1.25mm | 0.8mm |
Round
|
|
| Squirrel | 8mm | 4mm | 2.6mm | 2mm | 1.3mm | 1mm | 0.6mm |
Round
|
 |
| Ferret | 8mm | 4mm | 2.6mm | 2mm | 1.3mm | 1mm | 0.6mm |
Round
|
|
| Painted Turtle | 8mm | 4mm | 2.6mm | 2mm | 1.3mm | 1mm | 0.6mm | |
|
| Bullfrog | 8mm | 4mm | 2.6mm | 2mm | 1.3mm | 1mm | 0.6mm |
Round
|
|
| Rattlesnake | 8mm | 4mm | 2.6mm | 2mm | 1.3mm | 1mm | 0.6mm |
Slit
|
|
| T-Rex | |||||||||
| Veloceraptor | |||||||||
| Triceratops | |||||||||
| Humpback Whale |
* Note: All eye sizes for extinct animals are only estimates based on fossil skulls. Sadly since fossils don't preserve eyeballs I can't give you much guidance on what their eyes looked like aside from reccomending looking at a variety of reptile and bird eyes to see what looks right to you.*
If you aren't comfortable with metric measurements you can convert it to inches using this formula:
(size in milimeters) x .039 = (size in inches)