Pound Per Square Foot (abbreviations: psf, or lb/ft2): is a British (Imperial) and American pressure unit which is directly related to the psi pressure unit by a factor of 144 (1 sq ft = 12 in x 12 in = 144 sq in). Where, 1 pound per square foot equals 47.8803 pascals.
Kilopound Per Square Inch (abbreviations: ksi, or kips/in2): is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one kilopound-force applied to an area of one square inch.
How to Convert Pounds Per Square Feet to Kilopounds Per Square Inches
Example: How many kilopounds per square inches are equivalent to 68.02 pounds per square feet?
As;
1 pounds per square feet = 6.94444E-6 kilopounds per square inches
68.02 pounds per square feet = Y kilopounds per square inches
Assuming Y is the answer, and by criss-cross principle;
Y equals 68.02 times 6.94444E-6 over 1
(i.e.) Y = 68.02 * 6.94444E-6 / 1 = 0.0004723608088 kilopounds per square inches
Answer is: 0.0004723608088 kilopounds per square inches are equivalent to 68.02 pounds per square feet.
Practice Question: Convert the following units into ksi:
N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.
( i ) 55.77 psf
( ii ) 13.67 psf
( iii ) 22.44 psf
