---
title: "How much does a harbor seal weigh?"
description: "A harbor seal weighs 45–170 kg (99.2–375 lb). How that compares to other things, and where the number comes from."
url: https://atoneplace.net/weight/harbor-seal/
site: "At One Place"
---

# How much does a harbor seal weigh?

**Typical weight: 45–170 kg**

That is 99.2–375 lb.

The most widespread true seal of northern coasts, which must belly-crawl on land.

> Males are somewhat larger than females.

## How that compares

*Harbor seal against things of a similar mass.*

- Jaguar: 45–120 kg
- Treadmill: 40–200 kg
- Wild boar: 50–200 kg
- English mastiff: 54–113 kg
- Safe: 15–500 kg
- Elliptical trainer: 45–180 kg
- Snow blower: 14–145 kg
- Harbor seal: 45–170 kg

## More about a harbor seal

- [How long does a harbor seal last?](https://atoneplace.net/how-long/harbor-seal/) — 20–35 yr

## Common questions

### How much does a harbor seal weigh?

A harbor seal weighs 45–170 kg (99.2–375 lb). Males are somewhat larger than females.

## Related pages

- [How long does a harbor seal last?](https://atoneplace.net/how-long/harbor-seal/)
- [How much does a lion weigh?](https://atoneplace.net/weight/lion/)
- [How much does a tiger weigh?](https://atoneplace.net/weight/tiger/)
- [How much does a domestic cat weigh?](https://atoneplace.net/weight/domestic-cat/)
- [How much does a African elephant weigh?](https://atoneplace.net/weight/african-elephant/)
- [How much does a blue whale weigh?](https://atoneplace.net/weight/blue-whale/)
- [How much does a great white shark weigh?](https://atoneplace.net/weight/great-white-shark/)
- [How much does a cheetah weigh?](https://atoneplace.net/weight/cheetah/)
- [How much does a polar bear weigh?](https://atoneplace.net/weight/polar-bear/)
- [How much does a giraffe weigh?](https://atoneplace.net/weight/giraffe/)
- [How much does a gorilla weigh?](https://atoneplace.net/weight/gorilla/)

## Sources

- National Oceanic and Atmospheric Administration — NOAA (https://www.noaa.gov/) [Public domain (US Government)]