The longest snake ever measured was as long as a school bus. The smallest fits curled inside a coin.
How to Play: Guess if the snake on the right is LONGER or SHORTER than the one on the left.
Name A
Name B
Top 10 Longest Snake Species
Snake lengths are notoriously prone to exaggeration. We use peer-reviewed maximum verified measurements when available.
| # | Name | Maximum Length (m) | Unit |
|---|---|---|---|
| 1 | Reticulated Python | 7 | m |
| 2 | Amethystine Python | 6 | m |
| 3 | Green Anaconda | 5.50 | m |
| 4 | Burmese Python | 5.50 | m |
| 5 | King Cobra | 5.50 | m |
| 6 | African Rock Python | 5 | m |
| 7 | Black Mamba | 4.50 | m |
| 8 | Yellow Anaconda | 4.50 | m |
| 9 | Indian Python | 4 | m |
| 10 | Boa Constrictor | 4 | m |
How Snake Length Is Measured
Reticulated pythons (Southeast Asia) are the longest snakes alive. Verified specimens reach 7m; unverified claims exceed 10m. Most adults are 4-6m.
Green anacondas are heavier than reticulated pythons (up to 100kg vs 75kg) but slightly shorter. They’re considered the largest snake by mass.
Titanoboa, an extinct snake from 60 million years ago, reached 13m and 1,135kg — twice as long and 15x heavier than today’s largest. It went extinct as climate cooled.
Frequently Asked Questions
Longest snake?
Reticulated python at 7m verified maximum. Some unverified reports of 10m+ exist but lack documentation.
Heaviest snake?
Green anaconda at up to 100kg — heavier than retics despite being shorter.
Did snakes used to be bigger?
Yes. Titanoboa (60M years ago) reached 13m and 1,135kg. Climate cooling restricts modern snakes to smaller sizes.
Smallest snake?
Barbados thread snake at 10cm. It can curl up on a US quarter coin.
Note: Maximum snake lengths in meters from peer-reviewed herpetology references.
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