Largest Cephalopods by Length

The largest cephalopods - squid and octopuses - by maximum total length including tentacles, in metres. The giant squid is the longest at around 13 metres, though the colossal squid is bulkier and heavier despite being shorter.

About This Dataset

Largest Cephalopods by Length
The largest cephalopods - squid and octopuses - by maximum total length including tentacles, in metres. The giant squid is the longest at around 13 metres, though the colossal squid is bulkier and heavier despite being shorter.
✨ AI Insight

The giant squid (13 m) is the longest cephalopod, its extraordinary length driven mostly by two elongated feeding tentacles rather than body bulk. The colossal squid (≈6 m) is less than half as long but far heavier and more robustly built, making it the largest by mass - a reminder that length and weight tell different stories. The giant Pacific octopus (5 m) is the largest octopus, though octopuses lack the long tentacles that inflate squid measurements. The Humboldt squid (1.5 m) and common octopus (1.3 m) trail well behind. The chart captures how these largest invertebrates on Earth remain among the ocean's most mysterious animals, with the biggest specimens known largely from carcasses washed ashore or found in the stomachs of sperm whales.

Source:  Natural History Museum / Britannica

Key Findings

Auto-computed highlights from this dataset

🏆
Giant squid leads with 13 in All Time.
📊
Average value in All Time: 5  ·  median: 5.
↔️
Gap in All Time: Giant squid is 10× larger than Common octopus.

Largest Cephalopods by Length

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Data Insights

Numbers, trends & sources behind this chart

Admin
Data Points
5
5 categories  ·  1 year
Top Value
13
Giant squid
Maximum Total Length (m) · All Time
Metrics
1
Maximum Total Length (m)
Period
All Time
Single year snapshot

Category Rankings

Maximum Total Length (m) · All Time

# Category All Time
🥇 Giant squid 13
🥈 Colossal squid 6
🥉 Giant Pacific octopus 5
4 Humboldt squid 1.50
5 Common octopus 1.30
Statistical Summary — Maximum Total Length (m) · All Time
13
Maximum
1.30
Minimum
5
Average
5
Median

What This Data Shows

Auto-generated trend summaries per category

Giant squid
Recorded 13 Maximum Total Length (m) in All Time.
Colossal squid
Recorded 6 Maximum Total Length (m) in All Time.
Giant Pacific octopus
Recorded 5 Maximum Total Length (m) in All Time.
Humboldt squid
Recorded 1.50 Maximum Total Length (m) in All Time.
Common octopus
Recorded 1.30 Maximum Total Length (m) in All Time.

Full Data Table

5 records across 1 year

✓ 5 sourced
Category Metric All Time Source
Giant squid Maximum Total Length (m) 13
Colossal squid Maximum Total Length (m) 6
Giant Pacific octopus Maximum Total Length (m) 5
Humboldt squid Maximum Total Length (m) 1.50
Common octopus Maximum Total Length (m) 1.30

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