Bluebulb Projects' The Measure of Things presents:
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Click the box above and enter your number, then make a unit selection if you wish, then click the "Show Me" button.

4,500 is about 65 times the number of Submarines in the US Navy.
In other words, the count of Submarines in the US Navy is 0.016 times that amount.
(a.k.a. Subs) (includes all types, all classes) (2015 figures)
There's more!
Click here to see how other things compare to 4,500...