---
title: "Komodo dragon vs sperm whale — size, speed and bite force"
description: "Komodo dragon and sperm whale compared on mass, length, speed, bite force and lifespan — every measure side by side, with why the numbers cannot settle an encounter."
url: https://atoneplace.net/animal-vs/komodo-dragon-vs-sperm-whale/
site: "At One Place"
---

# Komodo dragon vs sperm whale

**Komodo dragon vs sperm whale: sperm whale leads on 3 of 3 measures**

Measured comparison — not a prediction

The largest living lizard, which kills large prey with venom and shock rather than jaw power. The largest toothed predator, diving to 2,000 m for squid and producing the loudest sound of any animal. On the measurements below, sperm whale leads on more of them — but they do not all point the same way, and the ones that disagree are the interesting part.

## The measurements

|  | Komodo dragon | sperm whale |
| --- | --- | --- |
| Mass | 40–166 kg | 15–57 t |
| Length | 2–3.13 m | 11–20.5 m |
| Bite force | 39 psi | — |
| Lifespan | 25–35 yr | 60–70 yr |

## Where each one leads

- Mass: sperm whale is 571× heavier.
- Length: sperm whale is 6.4× longer.
- Lifespan: sperm whale is 2.0× a longer life.

## What this does and does not tell you

These are measured averages with real ranges behind them, and every figure links to its own page. What they cannot do is settle an encounter. Outcomes between animals turn on circumstance — who initiates, whether either is hungry, defending young, injured or cornered, and what the terrain favours. Size and bite force are not decisive on their own, and most of these pairs never meet in the wild in any case, because their ranges do not overlap.

> Every figure here is an average with a substantial spread. Individual animals vary enormously — a large individual of the smaller species routinely exceeds a small individual of the larger one.

## Common questions

### Is a Komodo dragon bigger than a sperm whale?

sperm whale is heavier — 15–57 t against 40–166 kg.

### Who would win, a Komodo dragon or a sperm whale?

That is not something measurements can settle. The comparison above shows which animal leads on each measure, but an actual encounter depends on circumstance, motivation, health and terrain — and most pairs like this never meet in the wild.

## Related pages

- [How much does a Komodo dragon weigh?](https://atoneplace.net/weight/komodo-dragon/)
- [How much does a sperm whale weigh?](https://atoneplace.net/weight/sperm-whale/)
- [lion vs sperm whale](https://atoneplace.net/animal-vs/lion-vs-sperm-whale/)
- [leopard vs sperm whale](https://atoneplace.net/animal-vs/leopard-vs-sperm-whale/)
- [jaguar vs sperm whale](https://atoneplace.net/animal-vs/jaguar-vs-sperm-whale/)
- [jaguar vs Komodo dragon](https://atoneplace.net/animal-vs/jaguar-vs-komodo-dragon/)
- [cheetah vs sperm whale](https://atoneplace.net/animal-vs/cheetah-vs-sperm-whale/)
- [cheetah vs Komodo dragon](https://atoneplace.net/animal-vs/cheetah-vs-komodo-dragon/)
- [cougar vs sperm whale](https://atoneplace.net/animal-vs/cougar-vs-sperm-whale/)
- [cougar vs Komodo dragon](https://atoneplace.net/animal-vs/cougar-vs-komodo-dragon/)
- [snow leopard vs sperm whale](https://atoneplace.net/animal-vs/snow-leopard-vs-sperm-whale/)
- [domestic cat vs sperm whale](https://atoneplace.net/animal-vs/domestic-cat-vs-sperm-whale/)
- [domestic cat vs Komodo dragon](https://atoneplace.net/animal-vs/domestic-cat-vs-komodo-dragon/)
- [grizzly bear vs sperm whale](https://atoneplace.net/animal-vs/grizzly-bear-vs-sperm-whale/)

## Sources

- Smithsonian National Museum of Natural History — Smithsonian Institution (https://naturalhistory.si.edu/)
- National Oceanic and Atmospheric Administration — NOAA (https://www.noaa.gov/) [Public domain (US Government)]
- Typical range compiled from manufacturer specifications — At One Place (/about/)