Hippopotamus
A hippopotamus is a large, mostly aquatic mammal native to Africa, spending much of its time in rivers and lakes.
How big is it?
3.5 m long
Also 11.48 ft
Length · defined specimen
A little perspective
Hippopotamus vs Gaia spacecraft: length comparison
The length of a hippopotamus is approximately equal to the observatory height of the Gaia spacecraft.
A hippopotamus is a large, mostly aquatic mammal native to Africa, spending much of its time in rivers and lakes.
Gaia is a European Space Agency observatory designed to map the positions and motions of stars in the Milky Way.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
Measurements, assumptions & sources +
Hippopotamus
Length: 3.5 m; defined specimen.
A chosen 3.5 m, 1,500 kg adult hippopotamus.
Defined examples — our methodology
The marked length is calibrated. Unmeasured illustration details are representative.
Gaia spacecraft
Approximate observatory height: 3.5 m; approximate; range 3.3 m–3.7 m.
ESA’s Gaia observatory was approximately 3.5 m high and had a launch mass near 2,030 kg. Its deployed circular sunshield defines a much larger transverse span.
The marked approximate observatory height is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 3.5 m
We compare the length of a hippopotamus. This is an illustrative comparison value, not a claim that every example is the same.
A chosen 3.5 m, 1,500 kg adult hippopotamus.
The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 3.5 m | Not recorded | defined specimen | |
| 1.5 t | Not recorded | defined specimen |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueLiving thingsAfrican elephant3.3 mShoulder heightAn African elephant is a large plant-eating mammal recognised by its trunk, tusks and broad ears.
Around the same scalePlanets, moons and spaceGaia spacecraft3.5 mApproximate observatory heightGaia is a European Space Agency observatory designed to map the positions and motions of stars in the Milky Way.
Nearest higher valueLiving thingsWhite rhinoceros3.8 mLengthA white rhinoceros is a large African herbivore with two horns on its snout and a broad mouth for grazing.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
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