Weight Converter

A blue whale can weigh up to 200 metric tons - equivalent to 33 elephants or 2,670 average humans.

Hydrogen is the lightest atom at 1.008 amu, while Oganesson is the heaviest at 294 amu - nearly 300x heavier.

A standard gold bar (Good Delivery) weighs exactly 400 troy ounces or about 12.4 kg, worth over $750,000.

You'd weigh 2.5x more on Jupiter but only 38% of your Earth weight on Mars and just 17% on the Moon.

In a vacuum, a feather and bowling ball fall at exactly the same rate - proven on the Moon by Apollo 15.

The USS Gerald R. Ford weighs about 100,000 tons fully loaded - as heavy as 25,000 elephants.

Leafcutter ants can carry 50x their body weight. If humans could do this, we'd lift 4 tons each.

The original kilogram was defined by a platinum-iridium cylinder in Paris from 1889 until 2019.