How tall is an emperor penguin?
Emperor penguins are the tallest penguin species, standing between 100 and 130 cm (about 3.3 to 4.3 feet) tall. Adults typically weigh between 22 and 45 kg, with weight fluctuating dramatically throughout the breeding season. Males can lose up to 12 kg — roughly 45% of their body weight — during the two-month fasting period while they incubate the egg. Their large size is a critical adaptation for surviving Antarctic winters, as a bigger body retains heat more efficiently.
Related Species
Profiles connected to this answer — continue into habitat, diet, and conservation detail.
Related Questions
Keep learning
Short answers live here. Definitions, long reads, and the full catalogue sit next door.
Where this answer comes from
Reference bodies behind our species answers. Links last checked August 5, 2026.
- IUCN Red List - Global conservation assessments and extinction-risk categories.
- BirdLife Data Zone - Species accounts, distribution, and population summaries.
- Smithsonian Ocean Portal - Penguin biology, anatomy, and breeding explainers.
- Australian Museum - Little penguin biology and coastal breeding behavior.