Bluebulb Projects presents:
The Measure of Things Logo
Enter a measurement to see comparisons



521 kilograms is about 0.00000000000000000000009 times as heavy as The Earth.
In other words, it's 0.0000000000000000000000872170 times the weight of The Earth, and the weight of The Earth is 11,465,999,999,999,999,475,712.0000000000000000000000000000 times that amount.
The mass of the planet Earth is 5,973,599,999,999,999,505,072,128.000000000000000000000000000000 kilograms. The element iron makes up about 32% of that mass, or 1,917,499,999,999,999,942,328,320.000000000000000000000000000000 kilograms.
There's more!
Click here to see how other things compare to 521 kilograms...