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

400,000,000 tonnes is about 25,000,000,000,000 times as heavy as a Compact disc
In other words, it's 27,000,000,000,000 times the weight of a Compact disc, and the weight of a Compact disc is 0.000000000000037 times that amount.
(a.k.a. CD)
A compact disc typically weighs 0.0000150 tonnes. Data is stored on CDs by encoding into the track a series of tiny pits — each between 3.5 and 850 µm (0.00014 and 0.033 in) in length.
There's more!
Click here to see how other things compare to 400,000,000 tonnes...