How much do animals weigh? 8 surprising animal weights, compared
From a hummingbird to a newborn elephant: eight sourced animal weight ranges translated into familiar, genuinely surprising comparisons.
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Weight stories & data
How much do animals, everyday objects and sports equipment weigh? Explore sourced weight facts, clear explanations and surprising real-world comparisons.
Why is a basketball heavier than a soccer ball?
A regulation basketball weighs about 600 g (1.32 lb), while a soccer ball is about 430 g (15.2 oz). Official rules, geometry and air explain the 170 g (6 oz) gap.
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Why is guessing an object's weight so hard?
Why does a small object feel heavier than a large one? The size–weight illusion, material expectations and one feathery game trap help explain bad weight guesses.
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What weighs one kilogram (2.2 lb)? 6 useful everyday references
Water, a pillow, a guinea pig and three deceptive near-misses show what one kilogram (2.2 lb) feels like — and why the word “exactly” matters.
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How much does a million dollars weigh — and could you carry it?
In $100 bills a million dollars weighs 10 kg (22 lb); in $1 bills it becomes a full metric ton. Denomination, coins and gold change the answer completely.
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How much does a cloud weigh — and why does it not fall on you?
A one-cubic-kilometre cumulus cloud carries about 500 tonnes of water: 500,000 kg (1,102,311 lb). Here is the calculation, and why 0.02 mm droplets still stay in the sky.
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How much would you weigh on other planets? The Moon, Mars and Jupiter, explained
On the Moon a 62 kg (137 lb) adult reads just 10.3 kg (22.7 lb) on a scale; on Jupiter, 146 kg (322 lb). Here is the one line of physics behind those numbers — and a calculator to try your own weight.
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