How Heavy Is an Emperor Penguin?
an Emperor Penguin weighs about
35 kg (77.2 lb)
Typical range: 25 kg – 45 kg.
- an emperor penguin35 kg
adult range (Aptenodytes forsteri); males tend to be heavier than females and body mass varies with breeding season
- a bowling ball7.26 kg
heaviest ball allowed in tenpin bowling (16 lb); USBC sets no minimum weight
- a domestic cat4.5 kg
adult domestic cat (Felis catus); males larger; range 4.1–5.4 kg
- a gallon of water3.78 kg
1 US gallon (3.785 412 L) of pure water at 4 °C
- You
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Put it in perspective
- About 4.8× a bowling ball
- About 7.8× a domestic cat
- About 9.2× a gallon of water
Sources
[1] Animal Diversity Web, University of Michigan Museum of Zoology
Aptenodytes forsteri (emperor penguin)Museum / zoo / university
“Range mass 25 to 45 kg”
Value as published: 25 to 45 kg · accessed 2026-11-11.
Last updated 2026-11-11.Report a correction (please include a source link).
Related objects
- a chimpanzee50 kg (110 lb)
- a sheep50 kg (110 lb)
- a red kangaroo90 kg (198 lb)
- a newborn African elephant100 kg (220 lb)
- a pig100 kg (220 lb)
- an ostrich110 kg (243 lb)
Frequently asked questions
How much does an emperor penguin weigh?
an Emperor Penguin weighs about 35 kg (77.2 lb) — adult range (Aptenodytes forsteri); males tend to be heavier than females and body mass varies with breeding season.
How much is an emperor penguin in pounds and ounces?
77.2 lb, which is 1,230 oz. In metric terms: 35 kg.
Is an emperor penguin heavier than a bowling ball?
Yes. an Emperor Penguin weighs about 35 kg (77.2 lb), while a bowling ball is about 16 lb (7.26 kg) — roughly 4.8×.
Where does this number come from?
Every source is listed at the bottom of this page with publisher, link, access date and a verbatim quote. Numbers are only published when a qualifying source can be verified.