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🐍 Snake 🐍 Ball Python 🦎 Bearded Dragon 🦎 Iguana 🦎 Komodo Dragon 🦎 Chameleon 🦎 Leopard Gecko 🐢 Tortoise 🐢 Snapping Turtle 🐢 Sea Turtle 🐊 Crocodilian 🕷️ Tarantula 🦎 Axolotl 🐙 Octopus 🌊 Jellyfish 🦞 Lobster 🐚 Quahog 🔬 Tardigrade
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🐾 Animal Age Translator

Every Creature
Runs on Its
Own Clock.

A hamster's year is your decade. A bowhead whale alive today may have been born before the Civil War. We translate animal ages into human years — with real science, real facts, and no made-up math.

50+
Animals covered
400
Yrs — Greenland shark
Free
Always & forever
🐾 Quick Translator
in human years
All Animals

Find Your Animal

Science-based age calculators for 50+ species. Every calculator includes lifespan data, conservation status, fascinating facts, and a formula that actually makes sense.

Fascinating Facts

Did You Know?

A few facts that will make you see the animal world differently.

🐋
A bowhead whale discovered in 1999 had a 19th-century harpoon fragment lodged in its neck — meaning it survived an attack around 1890 and kept living for another 130 years.
Calculate bowhead whale age →
🐙
The common octopus lives only 1–2 years. In that time, it learns to use tools, solve puzzles, and navigate mazes. It dies at what would be roughly the human equivalent of early childhood.
Calculate octopus age →
🐢
Jonathan, a Seychelles giant tortoise living on the island of St Helena, is at least 191 years old. He was fully adult when photographed in 1886. He is almost certainly the oldest living land animal on Earth.
Calculate tortoise age →
🦈
A Greenland shark caught in the North Atlantic was estimated to be 392 years old — born around 1627, during the reign of King Charles I. It may still be alive today.
Calculate shark age →
🐹
A hamster's heart beats 450 times per minute. A human heart beats about 70. Their entire lifespan of 2–3 years contains roughly the same number of heartbeats as a human life of 80 years.
Calculate hamster age →
🌊
Turritopsis dohrnii, the immortal jellyfish, can revert to its juvenile polyp stage after reaching sexual maturity. It is the only known animal capable of cycling its life indefinitely.
Calculate jellyfish age →

Why PawClocks is Different

We don't just multiply by 7 and call it science. Every calculator on PawClocks uses species-specific formulas based on real lifespan data from veterinary literature, zoo records, and peer-reviewed research.

Every animal page includes conservation status, global population estimates, non-generic facts that actually surprise people, and writing that makes you want to share it.

Learn how we calculate ages →
50+
Animals
7
Categories
400
Max years tracked
Free
Always