🦇 Little brown bat vs Monarch butterfly 🦋
The little brown bat is about 3 times as long as the monarch butterfly. The little brown bat weighs about 30 times as much as the monarch butterfly.
| Row | 🦇 Little brown bat | 🦋 Monarch butterfly |
|---|---|---|
| Top speed We don't have a checked number for the little brown bat yet. | no checked number yet | 9.9 to 30 mph16 to 48 km/h1 |
| Weight The little brown bat weighs about 30 times as much as the monarch butterfly. | 0.5 oz14 g2 | 0.018 oz0.5 g3 |
| Lives The little brown bat usually lives about 95 times as long as the monarch butterfly. | 6.5 years6.5 years4 | 0.04 to 0.1 years0.04 to 0.1 years3 |
| Eats The little brown bat eats bugs; the monarch butterfly eats plants. | mosquitoes, moths, beetles and other flying insects | nectar from flowers; its caterpillars eat only milkweed |
| Lives in They can live in the same kind of place. | forests, towns and lakeshores across Canada and the United States | across North America, flying to Mexico and California for the winter |
Which one? Little brown bat or monarch butterfly
🏁 Who would win the race?
We don't have a checked top speed for the little brown bat yet, so there is no race.
We only race. Real animals mostly avoid each other. A race is the only fair contest: who reaches the tree first, by top speed.
Compare two more
Getting the animals ready…
📤 Share this pair
The link carries only the two animals’ names: peabody.kids/animals/compare/little-brown-bat-vs-monarch-butterfly
Where these numbers come from
- U.S. Fish and Wildlife Service, Monarch Butterfly Festival page, checked 30 October 2026.
- National Park Service, Lassen Volcanic, checked 30 October 2026.
- U.S. Fish and Wildlife Service, species profile, checked 30 October 2026.
- National Park Service, Jewel Cave, checked 30 October 2026.