Square feet =
Square meters x 10.76391042
Square meters =
Square feet x 0.09290304
PSI =
Bars x 14.50377377
Aluminum
171 pounds per cubic foot
Cast iron
450 pounds per cubic foot
Cement
94 pounds per cubic foot
Concrete
150 pounds per cubic foot
Steel
490 pounds per cubic foot
Feet =
Meters x 3.280839895
Pounds =
Kilograms x 2.204622622
Kilograms =
Pounds x 0.45359237
Cubic meters =
Cubic feet x 0.028316846
Cubic feet =
Cubic meters x 35.31466672