---
title: "Nile crocodile vs polar bear — size, speed and bite force"
description: "Nile crocodile and polar bear 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/nile-crocodile-vs-polar-bear/
site: "At One Place"
---

# Nile crocodile vs polar bear

**Nile crocodile vs polar bear: Nile crocodile leads on 2 of 3 measures**

Measured comparison — not a prediction

Africa's largest crocodilian and, by most counts, the animal responsible for the most human deaths on the continent. The largest living land carnivore, classified as a marine mammal because it hunts from sea ice. On the measurements below, Nile crocodile 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

|  | Nile crocodile | polar bear |
| --- | --- | --- |
| Mass | 225–750 kg | 150–700 kg |
| Length | 2.4–6 m | 1.8–3 m |
| Height | — | 1–1.6 m |
| Top speed | — | 40 km/h |
| Bite force | — | 1,200 psi |
| Lifespan | 45–80 yr | 20–32 yr |

## Where each one leads

- Mass: polar bear is 1.3× heavier.
- Length: Nile crocodile is 1.7× longer.
- Lifespan: Nile crocodile 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 Nile crocodile bigger than a polar bear?

polar bear is heavier — 150–700 kg against 225–750 kg.

### Who would win, a Nile crocodile or a polar bear?

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 Nile crocodile weigh?](https://atoneplace.net/weight/nile-crocodile/)
- [How much does a polar bear weigh?](https://atoneplace.net/weight/polar-bear/)
- [lion vs polar bear](https://atoneplace.net/animal-vs/lion-vs-polar-bear/)
- [lion vs Nile crocodile](https://atoneplace.net/animal-vs/lion-vs-nile-crocodile/)
- [leopard vs polar bear](https://atoneplace.net/animal-vs/leopard-vs-polar-bear/)
- [leopard vs Nile crocodile](https://atoneplace.net/animal-vs/leopard-vs-nile-crocodile/)
- [jaguar vs polar bear](https://atoneplace.net/animal-vs/jaguar-vs-polar-bear/)
- [jaguar vs Nile crocodile](https://atoneplace.net/animal-vs/jaguar-vs-nile-crocodile/)
- [cheetah vs polar bear](https://atoneplace.net/animal-vs/cheetah-vs-polar-bear/)
- [cheetah vs Nile crocodile](https://atoneplace.net/animal-vs/cheetah-vs-nile-crocodile/)
- [cougar vs polar bear](https://atoneplace.net/animal-vs/cougar-vs-polar-bear/)
- [cougar vs Nile crocodile](https://atoneplace.net/animal-vs/cougar-vs-nile-crocodile/)
- [domestic cat vs polar bear](https://atoneplace.net/animal-vs/domestic-cat-vs-polar-bear/)
- [domestic cat vs Nile crocodile](https://atoneplace.net/animal-vs/domestic-cat-vs-nile-crocodile/)

## Sources

- Smithsonian National Museum of Natural History — Smithsonian Institution (https://naturalhistory.si.edu/)