---
title: "American alligator vs Nile crocodile — size, speed and bite fo"
description: "American alligator and Nile crocodile compared on mass, length, speed, bite force and lifespan — every measure side by side, with why the numbers cannot settle an en"
url: https://atoneplace.net/animal-vs/american-alligator-vs-nile-crocodile/
site: "At One Place"
---

# American alligator vs Nile crocodile

**American alligator vs Nile crocodile: Nile crocodile leads on 2 of 3 measures**

Measured comparison — not a prediction

A broad-snouted crocodilian of the US Southeast, recovered from near-extinction to over a million animals. Africa's largest crocodilian and, by most counts, the animal responsible for the most human deaths on the continent. 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

|  | American alligator | Nile crocodile |
| --- | --- | --- |
| Mass | 70–500 kg | 225–750 kg |
| Length | 2.6–4.6 m | 2.4–6 m |
| Bite force | 1,000–2,980 psi | — |
| Lifespan | 35–70 yr | 45–80 yr |

## Where each one leads

- Mass: Nile crocodile is 1.5× heavier.
- Length: Nile crocodile is 1.2× longer.
- Lifespan: near enough identical.

## 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 American alligator bigger than a Nile crocodile?

Nile crocodile is heavier — 225–750 kg against 70–500 kg.

### Who would win, a American alligator or a Nile crocodile?

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 American alligator weigh?](https://atoneplace.net/weight/american-alligator/)
- [How much does a Nile crocodile weigh?](https://atoneplace.net/weight/nile-crocodile/)
- [lion vs Nile crocodile](https://atoneplace.net/animal-vs/lion-vs-nile-crocodile/)
- [leopard vs Nile crocodile](https://atoneplace.net/animal-vs/leopard-vs-nile-crocodile/)
- [jaguar vs Nile crocodile](https://atoneplace.net/animal-vs/jaguar-vs-nile-crocodile/)
- [cheetah vs Nile crocodile](https://atoneplace.net/animal-vs/cheetah-vs-nile-crocodile/)
- [cougar vs Nile crocodile](https://atoneplace.net/animal-vs/cougar-vs-nile-crocodile/)
- [domestic cat vs Nile crocodile](https://atoneplace.net/animal-vs/domestic-cat-vs-nile-crocodile/)
- [grizzly bear vs Nile crocodile](https://atoneplace.net/animal-vs/grizzly-bear-vs-nile-crocodile/)
- [gray wolf vs Nile crocodile](https://atoneplace.net/animal-vs/gray-wolf-vs-nile-crocodile/)
- [coyote vs Nile crocodile](https://atoneplace.net/animal-vs/coyote-vs-nile-crocodile/)
- [honey badger vs Nile crocodile](https://atoneplace.net/animal-vs/honey-badger-vs-nile-crocodile/)
- [African elephant vs Nile crocodile](https://atoneplace.net/animal-vs/african-elephant-vs-nile-crocodile/)
- [African elephant vs American alligator](https://atoneplace.net/animal-vs/african-elephant-vs-american-alligator/)

## Sources

- Smithsonian National Museum of Natural History — Smithsonian Institution (https://naturalhistory.si.edu/)
- Typical range compiled from manufacturer specifications — At One Place (/about/)