Canon SX30 IS weighs 601 g (1.32 lb / 21.20 oz) and has external dimensions of 123 x 92 x 108 mm (4.84 x 3.62 x 4.25″). Considering that the average weight of DSLR-Like type cameras is 591g, its weight is about average in its class. With a thickness of 108mm, it also has an average thickness.
In order to give you a better idea about the real life size of Canon SX30 IS, we have added an image of how it looks next to a credit card and an AA type battery.
Now let's compare Canon SX30 IS size with the camera that it replaced: Canon SX20 IS. Canon SX20 IS is 4mm shorter and 21mm thinner than Canon SX30 IS but it is also 5mm wider.
Below you can find the comparison of the weight and thickness of Canon SX30 IS with its main competitors:
Canon SX30 IS Size Compared to Main Competitors
Canon SX30 IS doesn't have any environmental sealings on its body so you got to be extra careful to protect it against water and dust. If you shoot under these conditions very often, consider checking Top Bridge Cameras with Weather Sealing page.