Mario's height: 155 cm
155cm=5.08530184 ft. Or just 5ft.
It seems to be the same size as Mario.
Steel is about 490 lbs per cubic ft.
490 x 5= 2450
The hat seems to be about half as tall as it is wide and long.
1225 lbs in kg is 555.650653 kg. Rounded to 556 kg. Class 1 lifting strength. This is my first ever calc, btw, so it may be a bit bad.