adding object being off scale

[FinalBarrage]

its not a big deal, id just like to know how it happened.

When i add an object, it has a dimention of x133 bigger than it should. The scale however is 1x1x1.
if i scale it down to the point were the Dimention is 1x1x1, the scale will be 0.007, but the cube will have its correct default size.

[Photox (Tim Gregory)]

You probably changed the radius:

[Richard_Marklew]

In the Scene / Units settings check you haven’t changed the unit scale value