---
title: "How much does a Japanese spider crab weigh?"
description: "A Japanese spider crab weighs 10–19 kg (22–41.9 lb). How that compares to other things, and where the number comes from."
url: https://atoneplace.net/weight/japanese-spider-crab/
site: "At One Place"
---

# How much does a Japanese spider crab weigh?

**Typical weight: 10–19 kg**

That is 22–41.9 lb.

The arthropod with the greatest leg span of any living species.

## How that compares

*Japanese spider crab against things of a similar mass.*

- Wheelchair: 7–160 kg
- Dehumidifier: 8–26 kg
- Japanese spider crab: 10–19 kg
- Television: 3.5–45 kg
- Traffic light: 10–28 kg
- Concrete block: 11–22 kg
- Kitchen sink: 6–60 kg
- Kettlebell: 4–48 kg

## More about a Japanese spider crab

- [How long does a Japanese spider crab last?](https://atoneplace.net/how-long/japanese-spider-crab/) — 50–100 yr
- [Japanese spider crab vs Giant Pacific octopus](https://atoneplace.net/vs/giant-pacific-octopus-vs-japanese-spider-crab/) — Side by side

## Common questions

### How much does a Japanese spider crab weigh?

A Japanese spider crab weighs 10–19 kg (22–41.9 lb).

## Related pages

- [How long does a Japanese spider crab last?](https://atoneplace.net/how-long/japanese-spider-crab/)
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- [Japanese spider crab vs Giant Pacific octopus](https://atoneplace.net/vs/giant-pacific-octopus-vs-japanese-spider-crab/)

## Sources

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