---
title: "grizzly bear vs sperm whale — size, speed and bite force"
description: "grizzly bear 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/grizzly-bear-vs-sperm-whale/
site: "At One Place"
---

# grizzly bear vs sperm whale

**grizzly bear vs sperm whale: sperm whale leads on 3 of 3 measures**

Measured comparison — not a prediction

The inland North American brown bear, smaller than coastal populations because it eats less salmon. 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

|  | grizzly bear | sperm whale |
| --- | --- | --- |
| Mass | 130–360 kg | 15–57 t |
| Length | 1.7–2.4 m | 11–20.5 m |
| Height | 0.9–1.1 m | — |
| Top speed | 56 km/h | — |
| Bite force | 975 psi | — |
| Lifespan | 20–35 yr | 60–70 yr |

## Where each one leads

- Mass: sperm whale is 148× heavier.
- Length: sperm whale is 8.0× longer.
- Lifespan: sperm whale is 2.4× 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 grizzly bear bigger than a sperm whale?

sperm whale is heavier — 15–57 t against 130–360 kg.

### Who would win, a grizzly bear 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 grizzly bear weigh?](https://atoneplace.net/weight/grizzly-bear/)
- [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/)
- [cheetah vs grizzly bear](https://atoneplace.net/animal-vs/cheetah-vs-grizzly-bear/)
- [cheetah vs sperm whale](https://atoneplace.net/animal-vs/cheetah-vs-sperm-whale/)
- [cougar vs grizzly bear](https://atoneplace.net/animal-vs/cougar-vs-grizzly-bear/)
- [cougar vs sperm whale](https://atoneplace.net/animal-vs/cougar-vs-sperm-whale/)
- [snow leopard vs sperm whale](https://atoneplace.net/animal-vs/snow-leopard-vs-sperm-whale/)
- [domestic cat vs grizzly bear](https://atoneplace.net/animal-vs/domestic-cat-vs-grizzly-bear/)
- [domestic cat vs sperm whale](https://atoneplace.net/animal-vs/domestic-cat-vs-sperm-whale/)
- [grizzly bear vs lion](https://atoneplace.net/animal-vs/grizzly-bear-vs-lion/)
- [grizzly bear vs tiger](https://atoneplace.net/animal-vs/grizzly-bear-vs-tiger/)

## 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)]