You don't. "PSI" is a unit of presure. "Foot-pounds" is a unit of energy
or torque. They're different physical quantities, and they don't convert.
This next comment may be abstruse: If PSI could be converted directly
to foot-pounds, then it would be possible to calibrate your barometer in
kilowatt-hours, and your electric meter could be marked in Atmospheres
or Pascals if you wanted that.
18 * lb * ft = 18 & lb * (12 * in/ft) * ft = 18*12 lb *in = 216 lb ft 12in = 1ft
20 ft of head can be easily converted to psi by using the specific weight of water: 62.4 lb/ft3 and converting the units to inches. 20ft * 62.4lb/ft3 / 144in2/ft2 = 8.67 psi
From a conversion table: 1 in lb = 0.0833333 ft lb 275 * 0.0833333 = 22.916657 ft lb (or 23 ft lb)
Um... there are 1 psi (lb/in2) = 144 psf (lbf/ft2) , if by (lb ft) you meant pounnds per square foot. then there is 1/144 psi in 1 (lbf/ft2)
Converting kilograms (kg) to pounds (lb) and then to pounds per square inch (psi) involves using the conversion factor that 1 kg is approximately equal to 2.20462 lb. Therefore, to convert 12 kg to psi, you would first convert 12 kg to pounds (12 kg * 2.20462 lb/kg) and then divide by the area in square inches. The final calculation involves dividing the weight in pounds by the area in square inches to get the pressure in psi.
super
Assuming you mean 110 grams to pounds the answer is0.242508488
1 lb foot = 12 inch lbs......Seriously.
12 inch lbs equal 1 ft lb. So, divide 106 by 12 and you will have your answer.
1 ft-lb = 0.32383 international calorie (0.00032383 food calorie) 1 food calorie = 3,088.03 ft-lbs
216 in-lb = 18 ft-lb calculation : 1 ft-lb = 12 in-lb
Multiply psi x 0.07 to get atmospheres.