Skip to main content
Global Animal Guide

Mouse vs Capybara

Quick answer

In a hypothetical one-on-one, the Capybara would most likely come out on top decisively, thanks to its greater size and power and raw strength. 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
House mouse with large ears and bright eyes sitting among dry grass seeds Power 12

Mammal

Least Concern
Mouse
Weight 20 g
Length 9 cm
Top speed 13 km/h
Strength 3/100
Deadliness 5/100
Intelligence 35/100
Lifespan 3 yr
Capybara with brown fur sitting at the edge of a river surrounded by greenery Winner Power 30

Mammal

Least Concern
Capybara
Weight 55 kg
Length 1.2 m
Top speed 35 km/h
Strength 25/100
Deadliness 5/100
Intelligence 40/100
Lifespan 9 yr

Mouse vs Capybara compared

Side-by-side comparison of the Mouse and the Capybara
Attribute Mouse Capybara
Weight 20 g 55 kg
Length 9 cm 1.2 m
Top speed 13 km/h 35 km/h
Strength 3/100 25/100
Deadliness 5/100 5/100
Intelligence 35/100 40/100
Lifespan 3 yr 9 yr

Mouse vs Capybara: common questions

Who would win in a fight, a Mouse or a Capybara?

In a hypothetical one-on-one, the Capybara would most likely come out on top decisively, thanks to its greater size and power and raw strength. In reality, animals like these rarely meet, and both would usually avoid a fight.

Which is bigger, the Mouse or the Capybara?

The Capybara is heavier, weighing around 55 kg compared with the other's 0.02 kg.

Which is faster, the Mouse or the Capybara?

The Capybara is faster, reaching about 35 km/h versus 13 km/h.

Which lives longer, the Mouse or the Capybara?

The Capybara typically lives longer, up to around 9 years compared with 3 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