Skip to main content
Global Animal Guide

Octopus vs Jellyfish

Quick answer

In a hypothetical one-on-one, the Octopus would most likely come out on top in most encounters, thanks to its raw strength and superior speed. In reality, animals like these rarely meet, and both would usually avoid a fight.

This is a hypothetical, educational comparison based on typical size, strength, and natural weaponry. In the wild these animals rarely meet, and most encounters end without a fight.

By , Founder Last reviewed How we research & review
Common octopus on a coral reef with curling arms and textured skin Winner Power 42

Invertebrate

Least Concern
Octopus
Weight 3 kg
Length 1 m
Top speed 25 km/h
Strength 45/100
Deadliness 35/100
Intelligence 82/100
Lifespan 2 yr
Translucent moon jellyfish drifting in deep blue ocean water Power 32

Invertebrate

Least Concern
Jellyfish
Weight 2 kg
Length 40 cm
Top speed 8 km/h
Strength 5/100
Deadliness 60/100
Intelligence 2/100
Lifespan 1 yr

Octopus vs Jellyfish compared

Side-by-side comparison of the Octopus and the Jellyfish
Attribute Octopus Jellyfish
Weight 3 kg 2 kg
Length 1 m 40 cm
Top speed 25 km/h 8 km/h
Strength 45/100 5/100
Deadliness 35/100 60/100
Intelligence 82/100 2/100
Lifespan 2 yr 1 yr

Octopus vs Jellyfish: common questions

Who would win in a fight, a Octopus or a Jellyfish?

In a hypothetical one-on-one, the Octopus would most likely come out on top in most encounters, thanks to its raw strength and superior speed. In reality, animals like these rarely meet, and both would usually avoid a fight.

Which is bigger, the Octopus or the Jellyfish?

The Octopus is heavier, weighing around 3 kg compared with the other's 2 kg.

Which is faster, the Octopus or the Jellyfish?

The Octopus is faster, reaching about 25 km/h versus 8 km/h.

Which lives longer, the Octopus or the Jellyfish?

The Octopus typically lives longer, up to around 2 years compared with 1 years.

Sources & references

Size, speed, and conservation data are drawn from established zoological references. Compare full profiles for habitat, diet, and behaviour:

Share this matchup