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

4,000 kilograms is about 9,500 times as heavy as a Football (American)
In other words, it's 9,730.7481240220 times the weight of a Football (American), and the weight of a Football (American) is 0.0001027670213281 times that amount.
(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 0.396893323750 kilograms and 0.4252428468750 kilograms. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.
There's more!
Click here to see how other things compare to 4,000 kilograms...